Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * dvb_frontend.c: DVB frontend tuning interface/thread | |
3 | * | |
4 | * | |
5 | * Copyright (C) 1999-2001 Ralph Metzler | |
6 | * Marcus Metzler | |
7 | * Holger Waechtler | |
8 | * for convergence integrated media GmbH | |
9 | * | |
10 | * Copyright (C) 2004 Andrew de Quincey (tuning thread cleanup) | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License | |
14 | * as published by the Free Software Foundation; either version 2 | |
15 | * of the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | |
26 | */ | |
27 | ||
8de8594a MCC |
28 | /* Enables DVBv3 compatibility bits at the headers */ |
29 | #define __DVB_CORE__ | |
30 | ||
1da177e4 LT |
31 | #include <linux/string.h> |
32 | #include <linux/kernel.h> | |
33 | #include <linux/sched.h> | |
34 | #include <linux/wait.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/poll.h> | |
4c4cb1b1 | 37 | #include <linux/semaphore.h> |
1da177e4 | 38 | #include <linux/module.h> |
1da177e4 | 39 | #include <linux/list.h> |
7dfb7103 | 40 | #include <linux/freezer.h> |
cc89c229 | 41 | #include <linux/jiffies.h> |
8eec1429 | 42 | #include <linux/kthread.h> |
1da177e4 | 43 | #include <asm/processor.h> |
1da177e4 LT |
44 | |
45 | #include "dvb_frontend.h" | |
46 | #include "dvbdev.h" | |
eacf8d8d | 47 | #include <linux/dvb/version.h> |
1da177e4 LT |
48 | |
49 | static int dvb_frontend_debug; | |
849be2cd | 50 | static int dvb_shutdown_timeout; |
1da177e4 LT |
51 | static int dvb_force_auto_inversion; |
52 | static int dvb_override_tune_delay; | |
53 | static int dvb_powerdown_on_sleep = 1; | |
59b1842d | 54 | static int dvb_mfe_wait_time = 5; |
1da177e4 LT |
55 | |
56 | module_param_named(frontend_debug, dvb_frontend_debug, int, 0644); | |
f4f009a7 | 57 | MODULE_PARM_DESC(frontend_debug, "Turn on/off frontend core debugging (default:off)."); |
6baad3f0 | 58 | module_param(dvb_shutdown_timeout, int, 0644); |
1da177e4 | 59 | MODULE_PARM_DESC(dvb_shutdown_timeout, "wait <shutdown_timeout> seconds after close() before suspending hardware"); |
6baad3f0 | 60 | module_param(dvb_force_auto_inversion, int, 0644); |
1da177e4 | 61 | MODULE_PARM_DESC(dvb_force_auto_inversion, "0: normal (default), 1: INVERSION_AUTO forced always"); |
6baad3f0 | 62 | module_param(dvb_override_tune_delay, int, 0644); |
1da177e4 | 63 | MODULE_PARM_DESC(dvb_override_tune_delay, "0: normal (default), >0 => delay in milliseconds to wait for lock after a tune attempt"); |
6baad3f0 | 64 | module_param(dvb_powerdown_on_sleep, int, 0644); |
a8558577 | 65 | MODULE_PARM_DESC(dvb_powerdown_on_sleep, "0: do not power down, 1: turn LNB voltage off on sleep (default)"); |
59b1842d DB |
66 | module_param(dvb_mfe_wait_time, int, 0644); |
67 | MODULE_PARM_DESC(dvb_mfe_wait_time, "Wait up to <mfe_wait_time> seconds on open() for multi-frontend to become available (default:5 seconds)"); | |
1da177e4 | 68 | |
1da177e4 LT |
69 | #define FESTATE_IDLE 1 |
70 | #define FESTATE_RETUNE 2 | |
71 | #define FESTATE_TUNING_FAST 4 | |
72 | #define FESTATE_TUNING_SLOW 8 | |
73 | #define FESTATE_TUNED 16 | |
74 | #define FESTATE_ZIGZAG_FAST 32 | |
75 | #define FESTATE_ZIGZAG_SLOW 64 | |
76 | #define FESTATE_DISEQC 128 | |
01886255 | 77 | #define FESTATE_ERROR 256 |
1da177e4 LT |
78 | #define FESTATE_WAITFORLOCK (FESTATE_TUNING_FAST | FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW | FESTATE_DISEQC) |
79 | #define FESTATE_SEARCHING_FAST (FESTATE_TUNING_FAST | FESTATE_ZIGZAG_FAST) | |
80 | #define FESTATE_SEARCHING_SLOW (FESTATE_TUNING_SLOW | FESTATE_ZIGZAG_SLOW) | |
81 | #define FESTATE_LOSTLOCK (FESTATE_ZIGZAG_FAST | FESTATE_ZIGZAG_SLOW) | |
0249ef16 MA |
82 | |
83 | #define FE_ALGO_HW 1 | |
1da177e4 LT |
84 | /* |
85 | * FESTATE_IDLE. No tuning parameters have been supplied and the loop is idling. | |
86 | * FESTATE_RETUNE. Parameters have been supplied, but we have not yet performed the first tune. | |
87 | * FESTATE_TUNING_FAST. Tuning parameters have been supplied and fast zigzag scan is in progress. | |
88 | * FESTATE_TUNING_SLOW. Tuning parameters have been supplied. Fast zigzag failed, so we're trying again, but slower. | |
89 | * FESTATE_TUNED. The frontend has successfully locked on. | |
90 | * FESTATE_ZIGZAG_FAST. The lock has been lost, and a fast zigzag has been initiated to try and regain it. | |
91 | * FESTATE_ZIGZAG_SLOW. The lock has been lost. Fast zigzag has been failed, so we're trying again, but slower. | |
92 | * FESTATE_DISEQC. A DISEQC command has just been issued. | |
93 | * FESTATE_WAITFORLOCK. When we're waiting for a lock. | |
94 | * FESTATE_SEARCHING_FAST. When we're searching for a signal using a fast zigzag scan. | |
95 | * FESTATE_SEARCHING_SLOW. When we're searching for a signal using a slow zigzag scan. | |
96 | * FESTATE_LOSTLOCK. When the lock has been lost, and we're searching it again. | |
97 | */ | |
98 | ||
e36309f5 | 99 | #define DVB_FE_NO_EXIT 0 |
100 | #define DVB_FE_NORMAL_EXIT 1 | |
101 | #define DVB_FE_DEVICE_REMOVED 2 | |
102 | ||
3593cab5 | 103 | static DEFINE_MUTEX(frontend_mutex); |
1da177e4 LT |
104 | |
105 | struct dvb_frontend_private { | |
106 | ||
36cb557a | 107 | /* thread/frontend values */ |
1da177e4 | 108 | struct dvb_device *dvbdev; |
a5959dbe | 109 | struct dvb_frontend_parameters parameters_out; |
1da177e4 LT |
110 | struct dvb_fe_events events; |
111 | struct semaphore sem; | |
112 | struct list_head list_head; | |
113 | wait_queue_head_t wait_queue; | |
8eec1429 | 114 | struct task_struct *thread; |
1da177e4 | 115 | unsigned long release_jiffies; |
36cb557a AQ |
116 | unsigned int exit; |
117 | unsigned int wakeup; | |
1da177e4 | 118 | fe_status_t status; |
400b7083 | 119 | unsigned long tune_mode_flags; |
36cb557a | 120 | unsigned int delay; |
86f40cc3 | 121 | unsigned int reinitialise; |
64454016 AQ |
122 | int tone; |
123 | int voltage; | |
36cb557a AQ |
124 | |
125 | /* swzigzag values */ | |
126 | unsigned int state; | |
127 | unsigned int bending; | |
128 | int lnb_drift; | |
129 | unsigned int inversion; | |
130 | unsigned int auto_step; | |
131 | unsigned int auto_sub_step; | |
132 | unsigned int started_auto_step; | |
133 | unsigned int min_delay; | |
134 | unsigned int max_drift; | |
135 | unsigned int step_size; | |
136 | int quality; | |
137 | unsigned int check_wrapped; | |
c59e7870 | 138 | enum dvbfe_search algo_status; |
1da177e4 LT |
139 | }; |
140 | ||
86f40cc3 | 141 | static void dvb_frontend_wakeup(struct dvb_frontend *fe); |
a689e365 | 142 | static int dtv_get_frontend(struct dvb_frontend *fe, |
a689e365 | 143 | struct dvb_frontend_parameters *p_out); |
556a0442 CR |
144 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
145 | struct dvb_frontend_parameters *p); | |
a689e365 MCC |
146 | |
147 | static bool has_get_frontend(struct dvb_frontend *fe) | |
148 | { | |
c065f5b4 | 149 | return fe->ops.get_frontend != NULL; |
a689e365 | 150 | } |
1da177e4 | 151 | |
5bfaadde MCC |
152 | /* |
153 | * Due to DVBv3 API calls, a delivery system should be mapped into one of | |
154 | * the 4 DVBv3 delivery systems (FE_QPSK, FE_QAM, FE_OFDM or FE_ATSC), | |
155 | * otherwise, a DVBv3 call will fail. | |
156 | */ | |
157 | enum dvbv3_emulation_type { | |
158 | DVBV3_UNKNOWN, | |
159 | DVBV3_QPSK, | |
160 | DVBV3_QAM, | |
161 | DVBV3_OFDM, | |
162 | DVBV3_ATSC, | |
163 | }; | |
164 | ||
165 | static enum dvbv3_emulation_type dvbv3_type(u32 delivery_system) | |
166 | { | |
167 | switch (delivery_system) { | |
168 | case SYS_DVBC_ANNEX_A: | |
169 | case SYS_DVBC_ANNEX_C: | |
170 | return DVBV3_QAM; | |
171 | case SYS_DVBS: | |
172 | case SYS_DVBS2: | |
173 | case SYS_TURBO: | |
174 | case SYS_ISDBS: | |
175 | case SYS_DSS: | |
176 | return DVBV3_QPSK; | |
177 | case SYS_DVBT: | |
178 | case SYS_DVBT2: | |
179 | case SYS_ISDBT: | |
224b6642 | 180 | case SYS_DTMB: |
5bfaadde MCC |
181 | return DVBV3_OFDM; |
182 | case SYS_ATSC: | |
ca689488 | 183 | case SYS_ATSCMH: |
5bfaadde MCC |
184 | case SYS_DVBC_ANNEX_B: |
185 | return DVBV3_ATSC; | |
186 | case SYS_UNDEFINED: | |
187 | case SYS_ISDBC: | |
188 | case SYS_DVBH: | |
189 | case SYS_DAB: | |
5bfaadde MCC |
190 | default: |
191 | /* | |
192 | * Doesn't know how to emulate those types and/or | |
193 | * there's no frontend driver from this type yet | |
194 | * with some emulation code, so, we're not sure yet how | |
195 | * to handle them, or they're not compatible with a DVBv3 call. | |
196 | */ | |
197 | return DVBV3_UNKNOWN; | |
198 | } | |
199 | } | |
200 | ||
1da177e4 LT |
201 | static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) |
202 | { | |
0c53c70f | 203 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
204 | struct dvb_fe_events *events = &fepriv->events; |
205 | struct dvb_frontend_event *e; | |
206 | int wp; | |
207 | ||
36bdbc3f | 208 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 209 | |
a689e365 | 210 | if ((status & FE_HAS_LOCK) && has_get_frontend(fe)) |
7c61d80a | 211 | dtv_get_frontend(fe, &fepriv->parameters_out); |
1da177e4 | 212 | |
77b1e2fb | 213 | mutex_lock(&events->mtx); |
1da177e4 | 214 | |
77b1e2fb | 215 | wp = (events->eventw + 1) % MAX_EVENT; |
1da177e4 LT |
216 | if (wp == events->eventr) { |
217 | events->overflow = 1; | |
218 | events->eventr = (events->eventr + 1) % MAX_EVENT; | |
219 | } | |
220 | ||
221 | e = &events->events[events->eventw]; | |
77b1e2fb | 222 | e->status = status; |
a5959dbe | 223 | e->parameters = fepriv->parameters_out; |
1da177e4 LT |
224 | |
225 | events->eventw = wp; | |
226 | ||
03b76123 | 227 | mutex_unlock(&events->mtx); |
1da177e4 | 228 | |
1da177e4 LT |
229 | wake_up_interruptible (&events->wait_queue); |
230 | } | |
231 | ||
232 | static int dvb_frontend_get_event(struct dvb_frontend *fe, | |
233 | struct dvb_frontend_event *event, int flags) | |
234 | { | |
0c53c70f | 235 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
236 | struct dvb_fe_events *events = &fepriv->events; |
237 | ||
36bdbc3f | 238 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
239 | |
240 | if (events->overflow) { | |
241 | events->overflow = 0; | |
242 | return -EOVERFLOW; | |
243 | } | |
244 | ||
245 | if (events->eventw == events->eventr) { | |
246 | int ret; | |
247 | ||
248 | if (flags & O_NONBLOCK) | |
249 | return -EWOULDBLOCK; | |
250 | ||
251 | up(&fepriv->sem); | |
252 | ||
253 | ret = wait_event_interruptible (events->wait_queue, | |
254 | events->eventw != events->eventr); | |
255 | ||
256 | if (down_interruptible (&fepriv->sem)) | |
257 | return -ERESTARTSYS; | |
258 | ||
259 | if (ret < 0) | |
260 | return ret; | |
261 | } | |
262 | ||
77b1e2fb AO |
263 | mutex_lock(&events->mtx); |
264 | *event = events->events[events->eventr]; | |
1da177e4 | 265 | events->eventr = (events->eventr + 1) % MAX_EVENT; |
03b76123 | 266 | mutex_unlock(&events->mtx); |
1da177e4 LT |
267 | |
268 | return 0; | |
269 | } | |
270 | ||
20640bea AO |
271 | static void dvb_frontend_clear_events(struct dvb_frontend *fe) |
272 | { | |
273 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
274 | struct dvb_fe_events *events = &fepriv->events; | |
275 | ||
276 | mutex_lock(&events->mtx); | |
277 | events->eventr = events->eventw; | |
278 | mutex_unlock(&events->mtx); | |
279 | } | |
280 | ||
1da177e4 LT |
281 | static void dvb_frontend_init(struct dvb_frontend *fe) |
282 | { | |
36bdbc3f AP |
283 | dev_dbg(fe->dvb->device, |
284 | "%s: initialising adapter %i frontend %i (%s)...\n", | |
285 | __func__, fe->dvb->num, fe->id, fe->ops.info.name); | |
dea74869 PB |
286 | |
287 | if (fe->ops.init) | |
288 | fe->ops.init(fe); | |
289 | if (fe->ops.tuner_ops.init) { | |
3b37a15c MA |
290 | if (fe->ops.i2c_gate_ctrl) |
291 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
292 | fe->ops.tuner_ops.init(fe); |
293 | if (fe->ops.i2c_gate_ctrl) | |
294 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 295 | } |
1da177e4 LT |
296 | } |
297 | ||
86f40cc3 AQ |
298 | void dvb_frontend_reinitialise(struct dvb_frontend *fe) |
299 | { | |
300 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
301 | ||
302 | fepriv->reinitialise = 1; | |
303 | dvb_frontend_wakeup(fe); | |
304 | } | |
305 | EXPORT_SYMBOL(dvb_frontend_reinitialise); | |
306 | ||
36cb557a | 307 | static void dvb_frontend_swzigzag_update_delay(struct dvb_frontend_private *fepriv, int locked) |
1da177e4 | 308 | { |
36cb557a | 309 | int q2; |
36bdbc3f | 310 | struct dvb_frontend *fe = fepriv->dvbdev->priv; |
1da177e4 | 311 | |
36bdbc3f | 312 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 313 | |
36cb557a AQ |
314 | if (locked) |
315 | (fepriv->quality) = (fepriv->quality * 220 + 36*256) / 256; | |
316 | else | |
317 | (fepriv->quality) = (fepriv->quality * 220 + 0) / 256; | |
1da177e4 | 318 | |
36cb557a AQ |
319 | q2 = fepriv->quality - 128; |
320 | q2 *= q2; | |
1da177e4 | 321 | |
36cb557a | 322 | fepriv->delay = fepriv->min_delay + q2 * HZ / (128*128); |
1da177e4 LT |
323 | } |
324 | ||
325 | /** | |
326 | * Performs automatic twiddling of frontend parameters. | |
327 | * | |
328 | * @param fe The frontend concerned. | |
329 | * @param check_wrapped Checks if an iteration has completed. DO NOT SET ON THE FIRST ATTEMPT | |
330 | * @returns Number of complete iterations that have been performed. | |
331 | */ | |
36cb557a | 332 | static int dvb_frontend_swzigzag_autotune(struct dvb_frontend *fe, int check_wrapped) |
1da177e4 LT |
333 | { |
334 | int autoinversion; | |
335 | int ready = 0; | |
01886255 | 336 | int fe_set_err = 0; |
0c53c70f | 337 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 MCC |
338 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
339 | int original_inversion = c->inversion; | |
340 | u32 original_frequency = c->frequency; | |
1da177e4 LT |
341 | |
342 | /* are we using autoinversion? */ | |
dea74869 | 343 | autoinversion = ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 | 344 | (c->inversion == INVERSION_AUTO)); |
1da177e4 LT |
345 | |
346 | /* setup parameters correctly */ | |
347 | while(!ready) { | |
348 | /* calculate the lnb_drift */ | |
349 | fepriv->lnb_drift = fepriv->auto_step * fepriv->step_size; | |
350 | ||
351 | /* wrap the auto_step if we've exceeded the maximum drift */ | |
352 | if (fepriv->lnb_drift > fepriv->max_drift) { | |
353 | fepriv->auto_step = 0; | |
354 | fepriv->auto_sub_step = 0; | |
355 | fepriv->lnb_drift = 0; | |
356 | } | |
357 | ||
358 | /* perform inversion and +/- zigzag */ | |
359 | switch(fepriv->auto_sub_step) { | |
360 | case 0: | |
361 | /* try with the current inversion and current drift setting */ | |
362 | ready = 1; | |
363 | break; | |
364 | ||
365 | case 1: | |
366 | if (!autoinversion) break; | |
367 | ||
368 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
369 | ready = 1; | |
370 | break; | |
371 | ||
372 | case 2: | |
373 | if (fepriv->lnb_drift == 0) break; | |
374 | ||
375 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
376 | ready = 1; | |
377 | break; | |
378 | ||
379 | case 3: | |
380 | if (fepriv->lnb_drift == 0) break; | |
381 | if (!autoinversion) break; | |
382 | ||
383 | fepriv->inversion = (fepriv->inversion == INVERSION_OFF) ? INVERSION_ON : INVERSION_OFF; | |
384 | fepriv->lnb_drift = -fepriv->lnb_drift; | |
385 | ready = 1; | |
386 | break; | |
387 | ||
388 | default: | |
389 | fepriv->auto_step++; | |
390 | fepriv->auto_sub_step = -1; /* it'll be incremented to 0 in a moment */ | |
391 | break; | |
392 | } | |
393 | ||
394 | if (!ready) fepriv->auto_sub_step++; | |
395 | } | |
396 | ||
397 | /* if this attempt would hit where we started, indicate a complete | |
398 | * iteration has occurred */ | |
399 | if ((fepriv->auto_step == fepriv->started_auto_step) && | |
400 | (fepriv->auto_sub_step == 0) && check_wrapped) { | |
401 | return 1; | |
402 | } | |
403 | ||
36bdbc3f AP |
404 | dev_dbg(fe->dvb->device, "%s: drift:%i inversion:%i auto_step:%i " \ |
405 | "auto_sub_step:%i started_auto_step:%i\n", | |
406 | __func__, fepriv->lnb_drift, fepriv->inversion, | |
407 | fepriv->auto_step, fepriv->auto_sub_step, | |
408 | fepriv->started_auto_step); | |
1da177e4 LT |
409 | |
410 | /* set the frontend itself */ | |
ac3852c4 | 411 | c->frequency += fepriv->lnb_drift; |
1da177e4 | 412 | if (autoinversion) |
ac3852c4 MCC |
413 | c->inversion = fepriv->inversion; |
414 | tmp = *c; | |
dea74869 | 415 | if (fe->ops.set_frontend) |
bc9cd273 | 416 | fe_set_err = fe->ops.set_frontend(fe); |
ac3852c4 | 417 | *c = tmp; |
01886255 JG |
418 | if (fe_set_err < 0) { |
419 | fepriv->state = FESTATE_ERROR; | |
420 | return fe_set_err; | |
421 | } | |
1da177e4 | 422 | |
ac3852c4 MCC |
423 | c->frequency = original_frequency; |
424 | c->inversion = original_inversion; | |
1da177e4 LT |
425 | |
426 | fepriv->auto_sub_step++; | |
427 | return 0; | |
428 | } | |
429 | ||
36cb557a AQ |
430 | static void dvb_frontend_swzigzag(struct dvb_frontend *fe) |
431 | { | |
30d9464c | 432 | fe_status_t s = 0; |
01886255 | 433 | int retval = 0; |
36cb557a | 434 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ac3852c4 | 435 | struct dtv_frontend_properties *c = &fe->dtv_property_cache, tmp; |
36cb557a AQ |
436 | |
437 | /* if we've got no parameters, just keep idling */ | |
438 | if (fepriv->state & FESTATE_IDLE) { | |
439 | fepriv->delay = 3*HZ; | |
440 | fepriv->quality = 0; | |
441 | return; | |
442 | } | |
443 | ||
444 | /* in SCAN mode, we just set the frontend when asked and leave it alone */ | |
445 | if (fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT) { | |
446 | if (fepriv->state & FESTATE_RETUNE) { | |
ac3852c4 | 447 | tmp = *c; |
dea74869 | 448 | if (fe->ops.set_frontend) |
bc9cd273 | 449 | retval = fe->ops.set_frontend(fe); |
ac3852c4 | 450 | *c = tmp; |
01886255 JG |
451 | if (retval < 0) |
452 | fepriv->state = FESTATE_ERROR; | |
453 | else | |
454 | fepriv->state = FESTATE_TUNED; | |
36cb557a AQ |
455 | } |
456 | fepriv->delay = 3*HZ; | |
457 | fepriv->quality = 0; | |
458 | return; | |
459 | } | |
460 | ||
461 | /* get the frontend status */ | |
462 | if (fepriv->state & FESTATE_RETUNE) { | |
463 | s = 0; | |
464 | } else { | |
dea74869 PB |
465 | if (fe->ops.read_status) |
466 | fe->ops.read_status(fe, &s); | |
36cb557a AQ |
467 | if (s != fepriv->status) { |
468 | dvb_frontend_add_event(fe, s); | |
469 | fepriv->status = s; | |
470 | } | |
471 | } | |
472 | ||
473 | /* if we're not tuned, and we have a lock, move to the TUNED state */ | |
474 | if ((fepriv->state & FESTATE_WAITFORLOCK) && (s & FE_HAS_LOCK)) { | |
475 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
476 | fepriv->state = FESTATE_TUNED; | |
477 | ||
478 | /* if we're tuned, then we have determined the correct inversion */ | |
dea74869 | 479 | if ((!(fe->ops.info.caps & FE_CAN_INVERSION_AUTO)) && |
ac3852c4 MCC |
480 | (c->inversion == INVERSION_AUTO)) { |
481 | c->inversion = fepriv->inversion; | |
36cb557a AQ |
482 | } |
483 | return; | |
484 | } | |
485 | ||
486 | /* if we are tuned already, check we're still locked */ | |
487 | if (fepriv->state & FESTATE_TUNED) { | |
488 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
489 | ||
490 | /* we're tuned, and the lock is still good... */ | |
491 | if (s & FE_HAS_LOCK) { | |
492 | return; | |
493 | } else { /* if we _WERE_ tuned, but now don't have a lock */ | |
494 | fepriv->state = FESTATE_ZIGZAG_FAST; | |
495 | fepriv->started_auto_step = fepriv->auto_step; | |
496 | fepriv->check_wrapped = 0; | |
497 | } | |
498 | } | |
499 | ||
500 | /* don't actually do anything if we're in the LOSTLOCK state, | |
501 | * the frontend is set to FE_CAN_RECOVER, and the max_drift is 0 */ | |
502 | if ((fepriv->state & FESTATE_LOSTLOCK) && | |
dea74869 | 503 | (fe->ops.info.caps & FE_CAN_RECOVER) && (fepriv->max_drift == 0)) { |
36cb557a AQ |
504 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); |
505 | return; | |
506 | } | |
507 | ||
508 | /* don't do anything if we're in the DISEQC state, since this | |
509 | * might be someone with a motorized dish controlled by DISEQC. | |
510 | * If its actually a re-tune, there will be a SET_FRONTEND soon enough. */ | |
511 | if (fepriv->state & FESTATE_DISEQC) { | |
512 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
513 | return; | |
514 | } | |
515 | ||
516 | /* if we're in the RETUNE state, set everything up for a brand | |
517 | * new scan, keeping the current inversion setting, as the next | |
518 | * tune is _very_ likely to require the same */ | |
519 | if (fepriv->state & FESTATE_RETUNE) { | |
520 | fepriv->lnb_drift = 0; | |
521 | fepriv->auto_step = 0; | |
522 | fepriv->auto_sub_step = 0; | |
523 | fepriv->started_auto_step = 0; | |
524 | fepriv->check_wrapped = 0; | |
525 | } | |
526 | ||
527 | /* fast zigzag. */ | |
528 | if ((fepriv->state & FESTATE_SEARCHING_FAST) || (fepriv->state & FESTATE_RETUNE)) { | |
529 | fepriv->delay = fepriv->min_delay; | |
530 | ||
2030c032 | 531 | /* perform a tune */ |
01886255 JG |
532 | retval = dvb_frontend_swzigzag_autotune(fe, |
533 | fepriv->check_wrapped); | |
534 | if (retval < 0) { | |
535 | return; | |
536 | } else if (retval) { | |
36cb557a AQ |
537 | /* OK, if we've run out of trials at the fast speed. |
538 | * Drop back to slow for the _next_ attempt */ | |
539 | fepriv->state = FESTATE_SEARCHING_SLOW; | |
540 | fepriv->started_auto_step = fepriv->auto_step; | |
541 | return; | |
542 | } | |
543 | fepriv->check_wrapped = 1; | |
544 | ||
545 | /* if we've just retuned, enter the ZIGZAG_FAST state. | |
546 | * This ensures we cannot return from an | |
547 | * FE_SET_FRONTEND ioctl before the first frontend tune | |
548 | * occurs */ | |
549 | if (fepriv->state & FESTATE_RETUNE) { | |
550 | fepriv->state = FESTATE_TUNING_FAST; | |
551 | } | |
552 | } | |
553 | ||
554 | /* slow zigzag */ | |
555 | if (fepriv->state & FESTATE_SEARCHING_SLOW) { | |
556 | dvb_frontend_swzigzag_update_delay(fepriv, s & FE_HAS_LOCK); | |
557 | ||
558 | /* Note: don't bother checking for wrapping; we stay in this | |
559 | * state until we get a lock */ | |
560 | dvb_frontend_swzigzag_autotune(fe, 0); | |
561 | } | |
562 | } | |
563 | ||
1da177e4 LT |
564 | static int dvb_frontend_is_exiting(struct dvb_frontend *fe) |
565 | { | |
0c53c70f | 566 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 567 | |
e36309f5 | 568 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
569 | return 1; |
570 | ||
571 | if (fepriv->dvbdev->writers == 1) | |
b9d5efcc | 572 | if (time_after_eq(jiffies, fepriv->release_jiffies + |
36cb557a | 573 | dvb_shutdown_timeout * HZ)) |
1da177e4 LT |
574 | return 1; |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | static int dvb_frontend_should_wakeup(struct dvb_frontend *fe) | |
580 | { | |
0c53c70f | 581 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
582 | |
583 | if (fepriv->wakeup) { | |
584 | fepriv->wakeup = 0; | |
585 | return 1; | |
586 | } | |
587 | return dvb_frontend_is_exiting(fe); | |
588 | } | |
589 | ||
590 | static void dvb_frontend_wakeup(struct dvb_frontend *fe) | |
591 | { | |
0c53c70f | 592 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 LT |
593 | |
594 | fepriv->wakeup = 1; | |
595 | wake_up_interruptible(&fepriv->wait_queue); | |
596 | } | |
597 | ||
1da177e4 LT |
598 | static int dvb_frontend_thread(void *data) |
599 | { | |
0c53c70f JS |
600 | struct dvb_frontend *fe = data; |
601 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
1da177e4 | 602 | fe_status_t s; |
c59e7870 MA |
603 | enum dvbfe_algo algo; |
604 | ||
7e072221 | 605 | bool re_tune = false; |
1da177e4 | 606 | |
36bdbc3f | 607 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 608 | |
36cb557a AQ |
609 | fepriv->check_wrapped = 0; |
610 | fepriv->quality = 0; | |
611 | fepriv->delay = 3*HZ; | |
1da177e4 | 612 | fepriv->status = 0; |
1da177e4 | 613 | fepriv->wakeup = 0; |
04c56d0e AQ |
614 | fepriv->reinitialise = 0; |
615 | ||
616 | dvb_frontend_init(fe); | |
1da177e4 | 617 | |
83144186 | 618 | set_freezable(); |
1da177e4 LT |
619 | while (1) { |
620 | up(&fepriv->sem); /* is locked when we enter the thread... */ | |
6591691b | 621 | restart: |
94238e9b | 622 | wait_event_interruptible_timeout(fepriv->wait_queue, |
e42837bc RW |
623 | dvb_frontend_should_wakeup(fe) || kthread_should_stop() |
624 | || freezing(current), | |
8eec1429 HP |
625 | fepriv->delay); |
626 | ||
627 | if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { | |
1da177e4 | 628 | /* got signal or quitting */ |
e36309f5 | 629 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
630 | break; |
631 | } | |
632 | ||
8eec1429 | 633 | if (try_to_freeze()) |
6591691b | 634 | goto restart; |
1da177e4 LT |
635 | |
636 | if (down_interruptible(&fepriv->sem)) | |
637 | break; | |
638 | ||
86f40cc3 AQ |
639 | if (fepriv->reinitialise) { |
640 | dvb_frontend_init(fe); | |
42f4e774 | 641 | if (fe->ops.set_tone && fepriv->tone != -1) |
dea74869 | 642 | fe->ops.set_tone(fe, fepriv->tone); |
42f4e774 | 643 | if (fe->ops.set_voltage && fepriv->voltage != -1) |
dea74869 | 644 | fe->ops.set_voltage(fe, fepriv->voltage); |
86f40cc3 AQ |
645 | fepriv->reinitialise = 0; |
646 | } | |
647 | ||
36cb557a | 648 | /* do an iteration of the tuning loop */ |
d772bd03 | 649 | if (fe->ops.get_frontend_algo) { |
c59e7870 MA |
650 | algo = fe->ops.get_frontend_algo(fe); |
651 | switch (algo) { | |
652 | case DVBFE_ALGO_HW: | |
36bdbc3f | 653 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_HW\n", __func__); |
c59e7870 | 654 | |
d772bd03 | 655 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 656 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTATE_RETUNE\n", __func__); |
7e072221 | 657 | re_tune = true; |
d772bd03 | 658 | fepriv->state = FESTATE_TUNED; |
45145b67 SA |
659 | } else { |
660 | re_tune = false; | |
d772bd03 MA |
661 | } |
662 | ||
c59e7870 | 663 | if (fe->ops.tune) |
7e072221 | 664 | fe->ops.tune(fe, re_tune, fepriv->tune_mode_flags, &fepriv->delay, &s); |
c59e7870 | 665 | |
2fac9a0f | 666 | if (s != fepriv->status && !(fepriv->tune_mode_flags & FE_TUNE_MODE_ONESHOT)) { |
36bdbc3f | 667 | dev_dbg(fe->dvb->device, "%s: state changed, adding current state\n", __func__); |
d772bd03 MA |
668 | dvb_frontend_add_event(fe, s); |
669 | fepriv->status = s; | |
670 | } | |
c59e7870 MA |
671 | break; |
672 | case DVBFE_ALGO_SW: | |
36bdbc3f | 673 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_SW\n", __func__); |
70d90635 | 674 | dvb_frontend_swzigzag(fe); |
c59e7870 MA |
675 | break; |
676 | case DVBFE_ALGO_CUSTOM: | |
36bdbc3f | 677 | dev_dbg(fe->dvb->device, "%s: Frontend ALGO = DVBFE_ALGO_CUSTOM, state=%d\n", __func__, fepriv->state); |
c59e7870 | 678 | if (fepriv->state & FESTATE_RETUNE) { |
36bdbc3f | 679 | dev_dbg(fe->dvb->device, "%s: Retune requested, FESTAT_RETUNE\n", __func__); |
c59e7870 MA |
680 | fepriv->state = FESTATE_TUNED; |
681 | } | |
682 | /* Case where we are going to search for a carrier | |
683 | * User asked us to retune again for some reason, possibly | |
684 | * requesting a search with a new set of parameters | |
685 | */ | |
686 | if (fepriv->algo_status & DVBFE_ALGO_SEARCH_AGAIN) { | |
7bcbdf38 | 687 | if (fe->ops.search) { |
41da5320 | 688 | fepriv->algo_status = fe->ops.search(fe); |
c59e7870 MA |
689 | /* We did do a search as was requested, the flags are |
690 | * now unset as well and has the flags wrt to search. | |
691 | */ | |
7bcbdf38 AJ |
692 | } else { |
693 | fepriv->algo_status &= ~DVBFE_ALGO_SEARCH_AGAIN; | |
694 | } | |
c59e7870 MA |
695 | } |
696 | /* Track the carrier if the search was successful */ | |
1b5d8716 | 697 | if (fepriv->algo_status != DVBFE_ALGO_SEARCH_SUCCESS) { |
7bcbdf38 AJ |
698 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; |
699 | fepriv->delay = HZ / 2; | |
700 | } | |
556a0442 | 701 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); |
7bcbdf38 AJ |
702 | fe->ops.read_status(fe, &s); |
703 | if (s != fepriv->status) { | |
704 | dvb_frontend_add_event(fe, s); /* update event list */ | |
705 | fepriv->status = s; | |
706 | if (!(s & FE_HAS_LOCK)) { | |
707 | fepriv->delay = HZ / 10; | |
708 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
709 | } else { | |
710 | fepriv->delay = 60 * HZ; | |
711 | } | |
c59e7870 MA |
712 | } |
713 | break; | |
714 | default: | |
36bdbc3f | 715 | dev_dbg(fe->dvb->device, "%s: UNDEFINED ALGO !\n", __func__); |
c59e7870 MA |
716 | break; |
717 | } | |
718 | } else { | |
4a4edcca | 719 | dvb_frontend_swzigzag(fe); |
c59e7870 | 720 | } |
1da177e4 LT |
721 | } |
722 | ||
608f62d6 OE |
723 | if (dvb_powerdown_on_sleep) { |
724 | if (fe->ops.set_voltage) | |
725 | fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); | |
dea74869 | 726 | if (fe->ops.tuner_ops.sleep) { |
41286d97 DH |
727 | if (fe->ops.i2c_gate_ctrl) |
728 | fe->ops.i2c_gate_ctrl(fe, 1); | |
dea74869 PB |
729 | fe->ops.tuner_ops.sleep(fe); |
730 | if (fe->ops.i2c_gate_ctrl) | |
731 | fe->ops.i2c_gate_ctrl(fe, 0); | |
7eef5dd6 | 732 | } |
dea74869 PB |
733 | if (fe->ops.sleep) |
734 | fe->ops.sleep(fe); | |
1da177e4 LT |
735 | } |
736 | ||
8eec1429 | 737 | fepriv->thread = NULL; |
e36309f5 | 738 | if (kthread_should_stop()) |
739 | fepriv->exit = DVB_FE_DEVICE_REMOVED; | |
740 | else | |
741 | fepriv->exit = DVB_FE_NO_EXIT; | |
1da177e4 LT |
742 | mb(); |
743 | ||
744 | dvb_frontend_wakeup(fe); | |
745 | return 0; | |
746 | } | |
747 | ||
748 | static void dvb_frontend_stop(struct dvb_frontend *fe) | |
749 | { | |
0c53c70f | 750 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 751 | |
36bdbc3f | 752 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 753 | |
e36309f5 | 754 | fepriv->exit = DVB_FE_NORMAL_EXIT; |
1da177e4 LT |
755 | mb(); |
756 | ||
8eec1429 | 757 | if (!fepriv->thread) |
1da177e4 LT |
758 | return; |
759 | ||
8eec1429 | 760 | kthread_stop(fepriv->thread); |
ca5be9cd | 761 | |
a0a4714c | 762 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
763 | fepriv->state = FESTATE_IDLE; |
764 | ||
765 | /* paranoia check in case a signal arrived */ | |
8eec1429 | 766 | if (fepriv->thread) |
36bdbc3f AP |
767 | dev_warn(fe->dvb->device, |
768 | "dvb_frontend_stop: warning: thread %p won't exit\n", | |
8eec1429 | 769 | fepriv->thread); |
1da177e4 LT |
770 | } |
771 | ||
83b75b04 N |
772 | s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime) |
773 | { | |
774 | return ((curtime.tv_usec < lasttime.tv_usec) ? | |
775 | 1000000 - lasttime.tv_usec + curtime.tv_usec : | |
776 | curtime.tv_usec - lasttime.tv_usec); | |
777 | } | |
778 | EXPORT_SYMBOL(timeval_usec_diff); | |
779 | ||
780 | static inline void timeval_usec_add(struct timeval *curtime, u32 add_usec) | |
781 | { | |
782 | curtime->tv_usec += add_usec; | |
783 | if (curtime->tv_usec >= 1000000) { | |
784 | curtime->tv_usec -= 1000000; | |
785 | curtime->tv_sec++; | |
786 | } | |
787 | } | |
788 | ||
789 | /* | |
790 | * Sleep until gettimeofday() > waketime + add_usec | |
791 | * This needs to be as precise as possible, but as the delay is | |
792 | * usually between 2ms and 32ms, it is done using a scheduled msleep | |
793 | * followed by usleep (normally a busy-wait loop) for the remainder | |
794 | */ | |
795 | void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec) | |
796 | { | |
797 | struct timeval lasttime; | |
798 | s32 delta, newdelta; | |
799 | ||
800 | timeval_usec_add(waketime, add_usec); | |
801 | ||
802 | do_gettimeofday(&lasttime); | |
803 | delta = timeval_usec_diff(lasttime, *waketime); | |
804 | if (delta > 2500) { | |
805 | msleep((delta - 1500) / 1000); | |
806 | do_gettimeofday(&lasttime); | |
807 | newdelta = timeval_usec_diff(lasttime, *waketime); | |
808 | delta = (newdelta > delta) ? 0 : newdelta; | |
809 | } | |
810 | if (delta > 0) | |
811 | udelay(delta); | |
812 | } | |
813 | EXPORT_SYMBOL(dvb_frontend_sleep_until); | |
814 | ||
1da177e4 LT |
815 | static int dvb_frontend_start(struct dvb_frontend *fe) |
816 | { | |
817 | int ret; | |
0c53c70f | 818 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
8eec1429 | 819 | struct task_struct *fe_thread; |
1da177e4 | 820 | |
36bdbc3f | 821 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 822 | |
8eec1429 | 823 | if (fepriv->thread) { |
e36309f5 | 824 | if (fepriv->exit == DVB_FE_NO_EXIT) |
1da177e4 LT |
825 | return 0; |
826 | else | |
827 | dvb_frontend_stop (fe); | |
828 | } | |
829 | ||
830 | if (signal_pending(current)) | |
831 | return -EINTR; | |
832 | if (down_interruptible (&fepriv->sem)) | |
833 | return -EINTR; | |
834 | ||
835 | fepriv->state = FESTATE_IDLE; | |
e36309f5 | 836 | fepriv->exit = DVB_FE_NO_EXIT; |
8eec1429 | 837 | fepriv->thread = NULL; |
1da177e4 LT |
838 | mb(); |
839 | ||
8eec1429 | 840 | fe_thread = kthread_run(dvb_frontend_thread, fe, |
363c35fc | 841 | "kdvb-ad-%i-fe-%i", fe->dvb->num,fe->id); |
8eec1429 HP |
842 | if (IS_ERR(fe_thread)) { |
843 | ret = PTR_ERR(fe_thread); | |
36bdbc3f AP |
844 | dev_warn(fe->dvb->device, |
845 | "dvb_frontend_start: failed to start kthread (%d)\n", | |
846 | ret); | |
1da177e4 LT |
847 | up(&fepriv->sem); |
848 | return ret; | |
849 | } | |
8eec1429 | 850 | fepriv->thread = fe_thread; |
1da177e4 LT |
851 | return 0; |
852 | } | |
853 | ||
2030c032 | 854 | static void dvb_frontend_get_frequency_limits(struct dvb_frontend *fe, |
c471b331 OE |
855 | u32 *freq_min, u32 *freq_max) |
856 | { | |
857 | *freq_min = max(fe->ops.info.frequency_min, fe->ops.tuner_ops.info.frequency_min); | |
858 | ||
859 | if (fe->ops.info.frequency_max == 0) | |
860 | *freq_max = fe->ops.tuner_ops.info.frequency_max; | |
861 | else if (fe->ops.tuner_ops.info.frequency_max == 0) | |
862 | *freq_max = fe->ops.info.frequency_max; | |
863 | else | |
864 | *freq_max = min(fe->ops.info.frequency_max, fe->ops.tuner_ops.info.frequency_max); | |
865 | ||
866 | if (*freq_min == 0 || *freq_max == 0) | |
36bdbc3f AP |
867 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %u frequency limits undefined - fix the driver\n", |
868 | fe->dvb->num, fe->id); | |
c471b331 OE |
869 | } |
870 | ||
5bfaadde | 871 | static int dvb_frontend_check_parameters(struct dvb_frontend *fe) |
1fab46f0 | 872 | { |
5bfaadde | 873 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
c471b331 OE |
874 | u32 freq_min; |
875 | u32 freq_max; | |
876 | ||
1fab46f0 | 877 | /* range check: frequency */ |
2030c032 | 878 | dvb_frontend_get_frequency_limits(fe, &freq_min, &freq_max); |
5bfaadde MCC |
879 | if ((freq_min && c->frequency < freq_min) || |
880 | (freq_max && c->frequency > freq_max)) { | |
36bdbc3f AP |
881 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i frequency %u out of range (%u..%u)\n", |
882 | fe->dvb->num, fe->id, c->frequency, | |
883 | freq_min, freq_max); | |
1fab46f0 OE |
884 | return -EINVAL; |
885 | } | |
886 | ||
887 | /* range check: symbol rate */ | |
5bfaadde MCC |
888 | switch (c->delivery_system) { |
889 | case SYS_DVBS: | |
890 | case SYS_DVBS2: | |
891 | case SYS_TURBO: | |
892 | case SYS_DVBC_ANNEX_A: | |
893 | case SYS_DVBC_ANNEX_C: | |
1fab46f0 | 894 | if ((fe->ops.info.symbol_rate_min && |
5bfaadde | 895 | c->symbol_rate < fe->ops.info.symbol_rate_min) || |
1fab46f0 | 896 | (fe->ops.info.symbol_rate_max && |
5bfaadde | 897 | c->symbol_rate > fe->ops.info.symbol_rate_max)) { |
36bdbc3f AP |
898 | dev_warn(fe->dvb->device, "DVB: adapter %i frontend %i symbol rate %u out of range (%u..%u)\n", |
899 | fe->dvb->num, fe->id, c->symbol_rate, | |
900 | fe->ops.info.symbol_rate_min, | |
901 | fe->ops.info.symbol_rate_max); | |
1fab46f0 OE |
902 | return -EINVAL; |
903 | } | |
5bfaadde MCC |
904 | default: |
905 | break; | |
1fab46f0 OE |
906 | } |
907 | ||
908 | return 0; | |
909 | } | |
910 | ||
b6e760f3 PB |
911 | static int dvb_frontend_clear_cache(struct dvb_frontend *fe) |
912 | { | |
50727719 | 913 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
b6e760f3 | 914 | int i; |
149709f5 | 915 | u32 delsys; |
b6e760f3 | 916 | |
149709f5 | 917 | delsys = c->delivery_system; |
50727719 | 918 | memset(c, 0, sizeof(struct dtv_frontend_properties)); |
149709f5 | 919 | c->delivery_system = delsys; |
50727719 AO |
920 | |
921 | c->state = DTV_CLEAR; | |
26c924fe | 922 | |
36bdbc3f AP |
923 | dev_dbg(fe->dvb->device, "%s: Clearing cache for delivery system %d\n", |
924 | __func__, c->delivery_system); | |
26c924fe | 925 | |
50727719 | 926 | c->transmission_mode = TRANSMISSION_MODE_AUTO; |
26c924fe | 927 | c->bandwidth_hz = 0; /* AUTO */ |
50727719 AO |
928 | c->guard_interval = GUARD_INTERVAL_AUTO; |
929 | c->hierarchy = HIERARCHY_AUTO; | |
26c924fe | 930 | c->symbol_rate = 0; |
50727719 AO |
931 | c->code_rate_HP = FEC_AUTO; |
932 | c->code_rate_LP = FEC_AUTO; | |
26c924fe | 933 | c->fec_inner = FEC_AUTO; |
39ce61a8 | 934 | c->rolloff = ROLLOFF_AUTO; |
26c924fe | 935 | c->voltage = SEC_VOLTAGE_OFF; |
26c924fe MCC |
936 | c->sectone = SEC_TONE_OFF; |
937 | c->pilot = PILOT_AUTO; | |
50727719 | 938 | |
a520ca97 MCC |
939 | c->isdbt_partial_reception = 0; |
940 | c->isdbt_sb_mode = 0; | |
941 | c->isdbt_sb_subchannel = 0; | |
942 | c->isdbt_sb_segment_idx = 0; | |
943 | c->isdbt_sb_segment_count = 0; | |
944 | c->isdbt_layer_enabled = 0; | |
b6e760f3 | 945 | for (i = 0; i < 3; i++) { |
50727719 AO |
946 | c->layer[i].fec = FEC_AUTO; |
947 | c->layer[i].modulation = QAM_AUTO; | |
a520ca97 MCC |
948 | c->layer[i].interleaving = 0; |
949 | c->layer[i].segment_count = 0; | |
b6e760f3 PB |
950 | } |
951 | ||
287cefd0 | 952 | c->stream_id = NO_STREAM_ID_FILTER; |
26c924fe | 953 | |
5bfaadde MCC |
954 | switch (c->delivery_system) { |
955 | case SYS_DVBS: | |
956 | case SYS_DVBS2: | |
957 | case SYS_TURBO: | |
958 | c->modulation = QPSK; /* implied for DVB-S in legacy API */ | |
959 | c->rolloff = ROLLOFF_35;/* implied for DVB-S */ | |
960 | break; | |
961 | case SYS_ATSC: | |
962 | c->modulation = VSB_8; | |
963 | break; | |
964 | default: | |
965 | c->modulation = QAM_AUTO; | |
966 | break; | |
967 | } | |
968 | ||
b6e760f3 PB |
969 | return 0; |
970 | } | |
971 | ||
972 | #define _DTV_CMD(n, s, b) \ | |
973 | [n] = { \ | |
974 | .name = #n, \ | |
975 | .cmd = n, \ | |
976 | .set = s,\ | |
977 | .buffer = b \ | |
978 | } | |
979 | ||
ec05a642 | 980 | static struct dtv_cmds_h dtv_cmds[DTV_MAX_COMMAND + 1] = { |
06d3a396 MCC |
981 | _DTV_CMD(DTV_TUNE, 1, 0), |
982 | _DTV_CMD(DTV_CLEAR, 1, 0), | |
6b73eeaf ST |
983 | |
984 | /* Set */ | |
06d3a396 MCC |
985 | _DTV_CMD(DTV_FREQUENCY, 1, 0), |
986 | _DTV_CMD(DTV_BANDWIDTH_HZ, 1, 0), | |
987 | _DTV_CMD(DTV_MODULATION, 1, 0), | |
988 | _DTV_CMD(DTV_INVERSION, 1, 0), | |
989 | _DTV_CMD(DTV_DISEQC_MASTER, 1, 1), | |
990 | _DTV_CMD(DTV_SYMBOL_RATE, 1, 0), | |
991 | _DTV_CMD(DTV_INNER_FEC, 1, 0), | |
992 | _DTV_CMD(DTV_VOLTAGE, 1, 0), | |
993 | _DTV_CMD(DTV_TONE, 1, 0), | |
994 | _DTV_CMD(DTV_PILOT, 1, 0), | |
995 | _DTV_CMD(DTV_ROLLOFF, 1, 0), | |
996 | _DTV_CMD(DTV_DELIVERY_SYSTEM, 1, 0), | |
997 | _DTV_CMD(DTV_HIERARCHY, 1, 0), | |
998 | _DTV_CMD(DTV_CODE_RATE_HP, 1, 0), | |
999 | _DTV_CMD(DTV_CODE_RATE_LP, 1, 0), | |
1000 | _DTV_CMD(DTV_GUARD_INTERVAL, 1, 0), | |
1001 | _DTV_CMD(DTV_TRANSMISSION_MODE, 1, 0), | |
224b6642 | 1002 | _DTV_CMD(DTV_INTERLEAVING, 1, 0), |
b6e760f3 PB |
1003 | |
1004 | _DTV_CMD(DTV_ISDBT_PARTIAL_RECEPTION, 1, 0), | |
1005 | _DTV_CMD(DTV_ISDBT_SOUND_BROADCASTING, 1, 0), | |
1006 | _DTV_CMD(DTV_ISDBT_SB_SUBCHANNEL_ID, 1, 0), | |
1007 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_IDX, 1, 0), | |
1008 | _DTV_CMD(DTV_ISDBT_SB_SEGMENT_COUNT, 1, 0), | |
e7b7949a | 1009 | _DTV_CMD(DTV_ISDBT_LAYER_ENABLED, 1, 0), |
b6e760f3 PB |
1010 | _DTV_CMD(DTV_ISDBT_LAYERA_FEC, 1, 0), |
1011 | _DTV_CMD(DTV_ISDBT_LAYERA_MODULATION, 1, 0), | |
1012 | _DTV_CMD(DTV_ISDBT_LAYERA_SEGMENT_COUNT, 1, 0), | |
1013 | _DTV_CMD(DTV_ISDBT_LAYERA_TIME_INTERLEAVING, 1, 0), | |
1014 | _DTV_CMD(DTV_ISDBT_LAYERB_FEC, 1, 0), | |
1015 | _DTV_CMD(DTV_ISDBT_LAYERB_MODULATION, 1, 0), | |
1016 | _DTV_CMD(DTV_ISDBT_LAYERB_SEGMENT_COUNT, 1, 0), | |
1017 | _DTV_CMD(DTV_ISDBT_LAYERB_TIME_INTERLEAVING, 1, 0), | |
1018 | _DTV_CMD(DTV_ISDBT_LAYERC_FEC, 1, 0), | |
1019 | _DTV_CMD(DTV_ISDBT_LAYERC_MODULATION, 1, 0), | |
1020 | _DTV_CMD(DTV_ISDBT_LAYERC_SEGMENT_COUNT, 1, 0), | |
1021 | _DTV_CMD(DTV_ISDBT_LAYERC_TIME_INTERLEAVING, 1, 0), | |
1022 | ||
287cefd0 EP |
1023 | _DTV_CMD(DTV_STREAM_ID, 1, 0), |
1024 | _DTV_CMD(DTV_DVBT2_PLP_ID_LEGACY, 1, 0), | |
8a2697ab | 1025 | _DTV_CMD(DTV_LNA, 1, 0), |
98293ef3 | 1026 | |
6b73eeaf | 1027 | /* Get */ |
06d3a396 MCC |
1028 | _DTV_CMD(DTV_DISEQC_SLAVE_REPLY, 0, 1), |
1029 | _DTV_CMD(DTV_API_VERSION, 0, 0), | |
1030 | _DTV_CMD(DTV_CODE_RATE_HP, 0, 0), | |
1031 | _DTV_CMD(DTV_CODE_RATE_LP, 0, 0), | |
1032 | _DTV_CMD(DTV_GUARD_INTERVAL, 0, 0), | |
1033 | _DTV_CMD(DTV_TRANSMISSION_MODE, 0, 0), | |
1034 | _DTV_CMD(DTV_HIERARCHY, 0, 0), | |
224b6642 | 1035 | _DTV_CMD(DTV_INTERLEAVING, 0, 0), |
ba2780c7 MA |
1036 | |
1037 | _DTV_CMD(DTV_ENUM_DELSYS, 0, 0), | |
ca689488 MK |
1038 | |
1039 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 1, 0), | |
1040 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 1, 0), | |
1041 | ||
1042 | _DTV_CMD(DTV_ATSCMH_FIC_VER, 0, 0), | |
1043 | _DTV_CMD(DTV_ATSCMH_PARADE_ID, 0, 0), | |
1044 | _DTV_CMD(DTV_ATSCMH_NOG, 0, 0), | |
1045 | _DTV_CMD(DTV_ATSCMH_TNOG, 0, 0), | |
1046 | _DTV_CMD(DTV_ATSCMH_SGN, 0, 0), | |
1047 | _DTV_CMD(DTV_ATSCMH_PRC, 0, 0), | |
1048 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_MODE, 0, 0), | |
1049 | _DTV_CMD(DTV_ATSCMH_RS_FRAME_ENSEMBLE, 0, 0), | |
1050 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_PRI, 0, 0), | |
1051 | _DTV_CMD(DTV_ATSCMH_RS_CODE_MODE_SEC, 0, 0), | |
1052 | _DTV_CMD(DTV_ATSCMH_SCCC_BLOCK_MODE, 0, 0), | |
1053 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_A, 0, 0), | |
1054 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_B, 0, 0), | |
1055 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_C, 0, 0), | |
1056 | _DTV_CMD(DTV_ATSCMH_SCCC_CODE_MODE_D, 0, 0), | |
6b73eeaf ST |
1057 | }; |
1058 | ||
36bdbc3f | 1059 | static void dtv_property_dump(struct dvb_frontend *fe, struct dtv_property *tvp) |
6b73eeaf ST |
1060 | { |
1061 | int i; | |
1062 | ||
106ff9e0 | 1063 | if (tvp->cmd <= 0 || tvp->cmd > DTV_MAX_COMMAND) { |
36bdbc3f AP |
1064 | dev_warn(fe->dvb->device, "%s: tvp.cmd = 0x%08x undefined\n", |
1065 | __func__, tvp->cmd); | |
4aae8efb DB |
1066 | return; |
1067 | } | |
1068 | ||
36bdbc3f AP |
1069 | dev_dbg(fe->dvb->device, "%s: tvp.cmd = 0x%08x (%s)\n", __func__, |
1070 | tvp->cmd, dtv_cmds[tvp->cmd].name); | |
6b73eeaf | 1071 | |
36bdbc3f AP |
1072 | if (dtv_cmds[tvp->cmd].buffer) { |
1073 | dev_dbg(fe->dvb->device, "%s: tvp.u.buffer.len = 0x%02x\n", | |
1074 | __func__, tvp->u.buffer.len); | |
6b73eeaf ST |
1075 | |
1076 | for(i = 0; i < tvp->u.buffer.len; i++) | |
36bdbc3f AP |
1077 | dev_dbg(fe->dvb->device, |
1078 | "%s: tvp.u.buffer.data[0x%02x] = 0x%02x\n", | |
1079 | __func__, i, tvp->u.buffer.data[i]); | |
1080 | } else { | |
1081 | dev_dbg(fe->dvb->device, "%s: tvp.u.data = 0x%08x\n", __func__, | |
1082 | tvp->u.data); | |
1083 | } | |
6b73eeaf ST |
1084 | } |
1085 | ||
ee33c525 ST |
1086 | /* Synchronise the legacy tuning parameters into the cache, so that demodulator |
1087 | * drivers can use a single set_frontend tuning function, regardless of whether | |
1088 | * it's being used for the legacy or new API, reducing code and complexity. | |
1089 | */ | |
5bfaadde MCC |
1090 | static int dtv_property_cache_sync(struct dvb_frontend *fe, |
1091 | struct dtv_frontend_properties *c, | |
1092 | const struct dvb_frontend_parameters *p) | |
ee33c525 | 1093 | { |
ee33c525 ST |
1094 | c->frequency = p->frequency; |
1095 | c->inversion = p->inversion; | |
1096 | ||
5bfaadde MCC |
1097 | switch (dvbv3_type(c->delivery_system)) { |
1098 | case DVBV3_QPSK: | |
36bdbc3f | 1099 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
ee33c525 ST |
1100 | c->symbol_rate = p->u.qpsk.symbol_rate; |
1101 | c->fec_inner = p->u.qpsk.fec_inner; | |
1102 | break; | |
5bfaadde | 1103 | case DVBV3_QAM: |
36bdbc3f | 1104 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
ee33c525 ST |
1105 | c->symbol_rate = p->u.qam.symbol_rate; |
1106 | c->fec_inner = p->u.qam.fec_inner; | |
1107 | c->modulation = p->u.qam.modulation; | |
1108 | break; | |
5bfaadde | 1109 | case DVBV3_OFDM: |
36bdbc3f AP |
1110 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
1111 | ||
9a27e6a0 MCC |
1112 | switch (p->u.ofdm.bandwidth) { |
1113 | case BANDWIDTH_10_MHZ: | |
1114 | c->bandwidth_hz = 10000000; | |
1115 | break; | |
1116 | case BANDWIDTH_8_MHZ: | |
75b7f943 | 1117 | c->bandwidth_hz = 8000000; |
9a27e6a0 MCC |
1118 | break; |
1119 | case BANDWIDTH_7_MHZ: | |
1120 | c->bandwidth_hz = 7000000; | |
1121 | break; | |
1122 | case BANDWIDTH_6_MHZ: | |
1123 | c->bandwidth_hz = 6000000; | |
1124 | break; | |
1125 | case BANDWIDTH_5_MHZ: | |
1126 | c->bandwidth_hz = 5000000; | |
1127 | break; | |
1128 | case BANDWIDTH_1_712_MHZ: | |
1129 | c->bandwidth_hz = 1712000; | |
1130 | break; | |
1131 | case BANDWIDTH_AUTO: | |
75b7f943 | 1132 | c->bandwidth_hz = 0; |
9a27e6a0 MCC |
1133 | } |
1134 | ||
ee33c525 ST |
1135 | c->code_rate_HP = p->u.ofdm.code_rate_HP; |
1136 | c->code_rate_LP = p->u.ofdm.code_rate_LP; | |
1137 | c->modulation = p->u.ofdm.constellation; | |
1138 | c->transmission_mode = p->u.ofdm.transmission_mode; | |
1139 | c->guard_interval = p->u.ofdm.guard_interval; | |
1140 | c->hierarchy = p->u.ofdm.hierarchy_information; | |
1141 | break; | |
5bfaadde | 1142 | case DVBV3_ATSC: |
36bdbc3f | 1143 | dev_dbg(fe->dvb->device, "%s: Preparing ATSC req\n", __func__); |
ee33c525 | 1144 | c->modulation = p->u.vsb.modulation; |
ca689488 MK |
1145 | if (c->delivery_system == SYS_ATSCMH) |
1146 | break; | |
80a773c9 ST |
1147 | if ((c->modulation == VSB_8) || (c->modulation == VSB_16)) |
1148 | c->delivery_system = SYS_ATSC; | |
1149 | else | |
1150 | c->delivery_system = SYS_DVBC_ANNEX_B; | |
ee33c525 | 1151 | break; |
5bfaadde | 1152 | case DVBV3_UNKNOWN: |
36bdbc3f AP |
1153 | dev_err(fe->dvb->device, |
1154 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1155 | __func__, c->delivery_system); | |
5bfaadde | 1156 | return -EINVAL; |
ee33c525 | 1157 | } |
5bfaadde MCC |
1158 | |
1159 | return 0; | |
ee33c525 ST |
1160 | } |
1161 | ||
d5748f10 ST |
1162 | /* Ensure the cached values are set correctly in the frontend |
1163 | * legacy tuning structures, for the advanced tuning API. | |
1164 | */ | |
5bfaadde | 1165 | static int dtv_property_legacy_params_sync(struct dvb_frontend *fe, |
a689e365 | 1166 | struct dvb_frontend_parameters *p) |
6b73eeaf | 1167 | { |
15cc2bb3 | 1168 | const struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1169 | |
d5748f10 ST |
1170 | p->frequency = c->frequency; |
1171 | p->inversion = c->inversion; | |
6b73eeaf | 1172 | |
5bfaadde MCC |
1173 | switch (dvbv3_type(c->delivery_system)) { |
1174 | case DVBV3_UNKNOWN: | |
36bdbc3f AP |
1175 | dev_err(fe->dvb->device, |
1176 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
1177 | __func__, c->delivery_system); | |
5bfaadde MCC |
1178 | return -EINVAL; |
1179 | case DVBV3_QPSK: | |
36bdbc3f | 1180 | dev_dbg(fe->dvb->device, "%s: Preparing QPSK req\n", __func__); |
d5748f10 ST |
1181 | p->u.qpsk.symbol_rate = c->symbol_rate; |
1182 | p->u.qpsk.fec_inner = c->fec_inner; | |
1183 | break; | |
5bfaadde | 1184 | case DVBV3_QAM: |
36bdbc3f | 1185 | dev_dbg(fe->dvb->device, "%s: Preparing QAM req\n", __func__); |
d5748f10 ST |
1186 | p->u.qam.symbol_rate = c->symbol_rate; |
1187 | p->u.qam.fec_inner = c->fec_inner; | |
1188 | p->u.qam.modulation = c->modulation; | |
1189 | break; | |
5bfaadde | 1190 | case DVBV3_OFDM: |
36bdbc3f | 1191 | dev_dbg(fe->dvb->device, "%s: Preparing OFDM req\n", __func__); |
9a27e6a0 MCC |
1192 | switch (c->bandwidth_hz) { |
1193 | case 10000000: | |
1194 | p->u.ofdm.bandwidth = BANDWIDTH_10_MHZ; | |
1195 | break; | |
1196 | case 8000000: | |
75b7f943 | 1197 | p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
9a27e6a0 MCC |
1198 | break; |
1199 | case 7000000: | |
1200 | p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; | |
1201 | break; | |
1202 | case 6000000: | |
1203 | p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; | |
1204 | break; | |
1205 | case 5000000: | |
1206 | p->u.ofdm.bandwidth = BANDWIDTH_5_MHZ; | |
1207 | break; | |
1208 | case 1712000: | |
1209 | p->u.ofdm.bandwidth = BANDWIDTH_1_712_MHZ; | |
1210 | break; | |
1211 | case 0: | |
1212 | default: | |
75b7f943 | 1213 | p->u.ofdm.bandwidth = BANDWIDTH_AUTO; |
9a27e6a0 | 1214 | } |
d5748f10 ST |
1215 | p->u.ofdm.code_rate_HP = c->code_rate_HP; |
1216 | p->u.ofdm.code_rate_LP = c->code_rate_LP; | |
1217 | p->u.ofdm.constellation = c->modulation; | |
1218 | p->u.ofdm.transmission_mode = c->transmission_mode; | |
1219 | p->u.ofdm.guard_interval = c->guard_interval; | |
1220 | p->u.ofdm.hierarchy_information = c->hierarchy; | |
1221 | break; | |
5bfaadde | 1222 | case DVBV3_ATSC: |
36bdbc3f | 1223 | dev_dbg(fe->dvb->device, "%s: Preparing VSB req\n", __func__); |
d5748f10 ST |
1224 | p->u.vsb.modulation = c->modulation; |
1225 | break; | |
1226 | } | |
5bfaadde | 1227 | return 0; |
6b73eeaf ST |
1228 | } |
1229 | ||
a689e365 MCC |
1230 | /** |
1231 | * dtv_get_frontend - calls a callback for retrieving DTV parameters | |
1232 | * @fe: struct dvb_frontend pointer | |
1233 | * @c: struct dtv_frontend_properties pointer (DVBv5 cache) | |
1234 | * @p_out struct dvb_frontend_parameters pointer (DVBv3 FE struct) | |
1235 | * | |
1236 | * This routine calls either the DVBv3 or DVBv5 get_frontend call. | |
1237 | * If c is not null, it will update the DVBv5 cache struct pointed by it. | |
1238 | * If p_out is not null, it will update the DVBv3 params pointed by it. | |
1239 | */ | |
1240 | static int dtv_get_frontend(struct dvb_frontend *fe, | |
a689e365 MCC |
1241 | struct dvb_frontend_parameters *p_out) |
1242 | { | |
a689e365 MCC |
1243 | int r; |
1244 | ||
a689e365 | 1245 | if (fe->ops.get_frontend) { |
7c61d80a | 1246 | r = fe->ops.get_frontend(fe); |
a689e365 MCC |
1247 | if (unlikely(r < 0)) |
1248 | return r; | |
7c61d80a | 1249 | if (p_out) |
a689e365 MCC |
1250 | dtv_property_legacy_params_sync(fe, p_out); |
1251 | return 0; | |
1252 | } | |
1253 | ||
7c61d80a | 1254 | /* As everything is in cache, get_frontend fops are always supported */ |
b1e9a650 | 1255 | return 0; |
a689e365 MCC |
1256 | } |
1257 | ||
16ef8def | 1258 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 | 1259 | unsigned int cmd, void *parg); |
16ef8def | 1260 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1261 | unsigned int cmd, void *parg); |
1262 | ||
072ce0c5 | 1263 | static int dtv_property_process_get(struct dvb_frontend *fe, |
a689e365 | 1264 | const struct dtv_frontend_properties *c, |
072ce0c5 | 1265 | struct dtv_property *tvp, |
16ef8def | 1266 | struct file *file) |
363429a0 | 1267 | { |
5bfaadde | 1268 | int r, ncaps; |
bfbf2dae | 1269 | |
363429a0 | 1270 | switch(tvp->cmd) { |
ba2780c7 | 1271 | case DTV_ENUM_DELSYS: |
5bfaadde MCC |
1272 | ncaps = 0; |
1273 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1274 | tvp->u.buffer.data[ncaps] = fe->ops.delsys[ncaps]; | |
1275 | ncaps++; | |
1276 | } | |
1277 | tvp->u.buffer.len = ncaps; | |
ba2780c7 | 1278 | break; |
363429a0 | 1279 | case DTV_FREQUENCY: |
50727719 | 1280 | tvp->u.data = c->frequency; |
363429a0 ST |
1281 | break; |
1282 | case DTV_MODULATION: | |
50727719 | 1283 | tvp->u.data = c->modulation; |
363429a0 | 1284 | break; |
75b7f943 | 1285 | case DTV_BANDWIDTH_HZ: |
50727719 | 1286 | tvp->u.data = c->bandwidth_hz; |
363429a0 ST |
1287 | break; |
1288 | case DTV_INVERSION: | |
50727719 | 1289 | tvp->u.data = c->inversion; |
363429a0 ST |
1290 | break; |
1291 | case DTV_SYMBOL_RATE: | |
50727719 | 1292 | tvp->u.data = c->symbol_rate; |
363429a0 ST |
1293 | break; |
1294 | case DTV_INNER_FEC: | |
50727719 | 1295 | tvp->u.data = c->fec_inner; |
363429a0 ST |
1296 | break; |
1297 | case DTV_PILOT: | |
50727719 | 1298 | tvp->u.data = c->pilot; |
363429a0 ST |
1299 | break; |
1300 | case DTV_ROLLOFF: | |
50727719 | 1301 | tvp->u.data = c->rolloff; |
363429a0 ST |
1302 | break; |
1303 | case DTV_DELIVERY_SYSTEM: | |
50727719 | 1304 | tvp->u.data = c->delivery_system; |
363429a0 | 1305 | break; |
363429a0 | 1306 | case DTV_VOLTAGE: |
50727719 | 1307 | tvp->u.data = c->voltage; |
363429a0 ST |
1308 | break; |
1309 | case DTV_TONE: | |
50727719 | 1310 | tvp->u.data = c->sectone; |
363429a0 | 1311 | break; |
eacf8d8d ST |
1312 | case DTV_API_VERSION: |
1313 | tvp->u.data = (DVB_API_VERSION << 8) | DVB_API_VERSION_MINOR; | |
1314 | break; | |
a4de91be | 1315 | case DTV_CODE_RATE_HP: |
50727719 | 1316 | tvp->u.data = c->code_rate_HP; |
a4de91be ST |
1317 | break; |
1318 | case DTV_CODE_RATE_LP: | |
50727719 | 1319 | tvp->u.data = c->code_rate_LP; |
a4de91be | 1320 | break; |
b87625f0 | 1321 | case DTV_GUARD_INTERVAL: |
50727719 | 1322 | tvp->u.data = c->guard_interval; |
b87625f0 ST |
1323 | break; |
1324 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1325 | tvp->u.data = c->transmission_mode; |
b87625f0 | 1326 | break; |
ef526f42 | 1327 | case DTV_HIERARCHY: |
50727719 | 1328 | tvp->u.data = c->hierarchy; |
ef526f42 | 1329 | break; |
224b6642 AP |
1330 | case DTV_INTERLEAVING: |
1331 | tvp->u.data = c->interleaving; | |
1332 | break; | |
b6e760f3 PB |
1333 | |
1334 | /* ISDB-T Support here */ | |
1335 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1336 | tvp->u.data = c->isdbt_partial_reception; |
b6e760f3 PB |
1337 | break; |
1338 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1339 | tvp->u.data = c->isdbt_sb_mode; |
b6e760f3 PB |
1340 | break; |
1341 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1342 | tvp->u.data = c->isdbt_sb_subchannel; |
b6e760f3 PB |
1343 | break; |
1344 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1345 | tvp->u.data = c->isdbt_sb_segment_idx; |
b6e760f3 PB |
1346 | break; |
1347 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1348 | tvp->u.data = c->isdbt_sb_segment_count; |
b6e760f3 | 1349 | break; |
e7b7949a | 1350 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1351 | tvp->u.data = c->isdbt_layer_enabled; |
e7b7949a | 1352 | break; |
b6e760f3 | 1353 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1354 | tvp->u.data = c->layer[0].fec; |
b6e760f3 PB |
1355 | break; |
1356 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1357 | tvp->u.data = c->layer[0].modulation; |
b6e760f3 PB |
1358 | break; |
1359 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1360 | tvp->u.data = c->layer[0].segment_count; |
b6e760f3 PB |
1361 | break; |
1362 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1363 | tvp->u.data = c->layer[0].interleaving; |
b6e760f3 PB |
1364 | break; |
1365 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1366 | tvp->u.data = c->layer[1].fec; |
b6e760f3 PB |
1367 | break; |
1368 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1369 | tvp->u.data = c->layer[1].modulation; |
b6e760f3 PB |
1370 | break; |
1371 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1372 | tvp->u.data = c->layer[1].segment_count; |
b6e760f3 PB |
1373 | break; |
1374 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1375 | tvp->u.data = c->layer[1].interleaving; |
b6e760f3 PB |
1376 | break; |
1377 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1378 | tvp->u.data = c->layer[2].fec; |
b6e760f3 PB |
1379 | break; |
1380 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1381 | tvp->u.data = c->layer[2].modulation; |
b6e760f3 PB |
1382 | break; |
1383 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1384 | tvp->u.data = c->layer[2].segment_count; |
b6e760f3 PB |
1385 | break; |
1386 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1387 | tvp->u.data = c->layer[2].interleaving; |
b6e760f3 | 1388 | break; |
287cefd0 EP |
1389 | |
1390 | /* Multistream support */ | |
1391 | case DTV_STREAM_ID: | |
1392 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1393 | tvp->u.data = c->stream_id; | |
94d56ffa | 1394 | break; |
ca689488 MK |
1395 | |
1396 | /* ATSC-MH */ | |
1397 | case DTV_ATSCMH_FIC_VER: | |
1398 | tvp->u.data = fe->dtv_property_cache.atscmh_fic_ver; | |
1399 | break; | |
1400 | case DTV_ATSCMH_PARADE_ID: | |
1401 | tvp->u.data = fe->dtv_property_cache.atscmh_parade_id; | |
1402 | break; | |
1403 | case DTV_ATSCMH_NOG: | |
1404 | tvp->u.data = fe->dtv_property_cache.atscmh_nog; | |
1405 | break; | |
1406 | case DTV_ATSCMH_TNOG: | |
1407 | tvp->u.data = fe->dtv_property_cache.atscmh_tnog; | |
1408 | break; | |
1409 | case DTV_ATSCMH_SGN: | |
1410 | tvp->u.data = fe->dtv_property_cache.atscmh_sgn; | |
1411 | break; | |
1412 | case DTV_ATSCMH_PRC: | |
1413 | tvp->u.data = fe->dtv_property_cache.atscmh_prc; | |
1414 | break; | |
1415 | case DTV_ATSCMH_RS_FRAME_MODE: | |
1416 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_mode; | |
1417 | break; | |
1418 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1419 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_frame_ensemble; | |
1420 | break; | |
1421 | case DTV_ATSCMH_RS_CODE_MODE_PRI: | |
1422 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_pri; | |
1423 | break; | |
1424 | case DTV_ATSCMH_RS_CODE_MODE_SEC: | |
1425 | tvp->u.data = fe->dtv_property_cache.atscmh_rs_code_mode_sec; | |
1426 | break; | |
1427 | case DTV_ATSCMH_SCCC_BLOCK_MODE: | |
1428 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_block_mode; | |
1429 | break; | |
1430 | case DTV_ATSCMH_SCCC_CODE_MODE_A: | |
1431 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_a; | |
1432 | break; | |
1433 | case DTV_ATSCMH_SCCC_CODE_MODE_B: | |
1434 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_b; | |
1435 | break; | |
1436 | case DTV_ATSCMH_SCCC_CODE_MODE_C: | |
1437 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_c; | |
1438 | break; | |
1439 | case DTV_ATSCMH_SCCC_CODE_MODE_D: | |
1440 | tvp->u.data = fe->dtv_property_cache.atscmh_sccc_code_mode_d; | |
1441 | break; | |
ca689488 | 1442 | |
363429a0 | 1443 | default: |
aff8ab5c | 1444 | return -EINVAL; |
363429a0 ST |
1445 | } |
1446 | ||
e23d9ae3 AO |
1447 | /* Allow the frontend to override outgoing properties */ |
1448 | if (fe->ops.get_property) { | |
1449 | r = fe->ops.get_property(fe, tvp); | |
1450 | if (r < 0) | |
1451 | return r; | |
1452 | } | |
1453 | ||
36bdbc3f | 1454 | dtv_property_dump(fe, tvp); |
639544d7 | 1455 | |
aff8ab5c | 1456 | return 0; |
363429a0 ST |
1457 | } |
1458 | ||
5bfaadde MCC |
1459 | static int dtv_set_frontend(struct dvb_frontend *fe); |
1460 | ||
04be0f76 MCC |
1461 | static bool is_dvbv3_delsys(u32 delsys) |
1462 | { | |
1463 | bool status; | |
1464 | ||
1465 | status = (delsys == SYS_DVBT) || (delsys == SYS_DVBC_ANNEX_A) || | |
1466 | (delsys == SYS_DVBS) || (delsys == SYS_ATSC); | |
1467 | ||
1468 | return status; | |
1469 | } | |
1470 | ||
1471 | static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) | |
1472 | { | |
1473 | int ncaps, i; | |
1474 | u32 delsys = SYS_UNDEFINED; | |
1475 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1476 | enum dvbv3_emulation_type type; | |
1477 | ||
f4b1952a MCC |
1478 | /* |
1479 | * It was reported that some old DVBv5 applications were | |
1480 | * filling delivery_system with SYS_UNDEFINED. If this happens, | |
1481 | * assume that the application wants to use the first supported | |
1482 | * delivery system. | |
1483 | */ | |
1484 | if (c->delivery_system == SYS_UNDEFINED) | |
1485 | c->delivery_system = fe->ops.delsys[0]; | |
1486 | ||
04be0f76 MCC |
1487 | if (desired_system == SYS_UNDEFINED) { |
1488 | /* | |
1489 | * A DVBv3 call doesn't know what's the desired system. | |
37fa53c6 MCC |
1490 | * Also, DVBv3 applications don't know that ops.info->type |
1491 | * could be changed, and they simply dies when it doesn't | |
1492 | * match. | |
1493 | * So, don't change the current delivery system, as it | |
1494 | * may be trying to do the wrong thing, like setting an | |
1495 | * ISDB-T frontend as DVB-T. Instead, find the closest | |
1496 | * DVBv3 system that matches the delivery system. | |
04be0f76 MCC |
1497 | */ |
1498 | if (is_dvbv3_delsys(c->delivery_system)) { | |
36bdbc3f AP |
1499 | dev_dbg(fe->dvb->device, |
1500 | "%s: Using delivery system to %d\n", | |
1501 | __func__, c->delivery_system); | |
04be0f76 MCC |
1502 | return 0; |
1503 | } | |
1504 | type = dvbv3_type(c->delivery_system); | |
1505 | switch (type) { | |
1506 | case DVBV3_QPSK: | |
37fa53c6 | 1507 | desired_system = SYS_DVBS; |
04be0f76 MCC |
1508 | break; |
1509 | case DVBV3_QAM: | |
37fa53c6 | 1510 | desired_system = SYS_DVBC_ANNEX_A; |
04be0f76 MCC |
1511 | break; |
1512 | case DVBV3_ATSC: | |
37fa53c6 | 1513 | desired_system = SYS_ATSC; |
04be0f76 MCC |
1514 | break; |
1515 | case DVBV3_OFDM: | |
37fa53c6 | 1516 | desired_system = SYS_DVBT; |
04be0f76 MCC |
1517 | break; |
1518 | default: | |
36bdbc3f AP |
1519 | dev_dbg(fe->dvb->device, "%s: This frontend doesn't support DVBv3 calls\n", |
1520 | __func__); | |
04be0f76 MCC |
1521 | return -EINVAL; |
1522 | } | |
3626479e MCC |
1523 | /* |
1524 | * Get a delivery system that is compatible with DVBv3 | |
1525 | * NOTE: in order for this to work with softwares like Kaffeine that | |
1526 | * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to | |
1527 | * DVB-S, drivers that support both should put the SYS_DVBS entry | |
1528 | * before the SYS_DVBS2, otherwise it won't switch back to DVB-S. | |
1529 | * The real fix is that userspace applications should not use DVBv3 | |
1530 | * and not trust on calling FE_SET_FRONTEND to switch the delivery | |
1531 | * system. | |
1532 | */ | |
1533 | ncaps = 0; | |
1534 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1535 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1536 | delsys = desired_system; | |
1537 | break; | |
1538 | } | |
1539 | ncaps++; | |
1540 | } | |
1541 | if (delsys == SYS_UNDEFINED) { | |
36bdbc3f AP |
1542 | dev_dbg(fe->dvb->device, "%s: Couldn't find a delivery system that matches %d\n", |
1543 | __func__, desired_system); | |
3626479e | 1544 | } |
04be0f76 MCC |
1545 | } else { |
1546 | /* | |
37fa53c6 MCC |
1547 | * This is a DVBv5 call. So, it likely knows the supported |
1548 | * delivery systems. | |
04be0f76 | 1549 | */ |
37fa53c6 MCC |
1550 | |
1551 | /* Check if the desired delivery system is supported */ | |
04be0f76 MCC |
1552 | ncaps = 0; |
1553 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1554 | if (fe->ops.delsys[ncaps] == desired_system) { | |
1555 | c->delivery_system = desired_system; | |
36bdbc3f AP |
1556 | dev_dbg(fe->dvb->device, |
1557 | "%s: Changing delivery system to %d\n", | |
1558 | __func__, desired_system); | |
04be0f76 MCC |
1559 | return 0; |
1560 | } | |
6c4b78cb | 1561 | ncaps++; |
04be0f76 MCC |
1562 | } |
1563 | type = dvbv3_type(desired_system); | |
1564 | ||
1565 | /* | |
1566 | * The delivery system is not supported. See if it can be | |
1567 | * emulated. | |
1568 | * The emulation only works if the desired system is one of the | |
1569 | * DVBv3 delivery systems | |
1570 | */ | |
1571 | if (!is_dvbv3_delsys(desired_system)) { | |
36bdbc3f AP |
1572 | dev_dbg(fe->dvb->device, |
1573 | "%s: can't use a DVBv3 FE_SET_FRONTEND call on this frontend\n", | |
1574 | __func__); | |
04be0f76 MCC |
1575 | return -EINVAL; |
1576 | } | |
1577 | ||
1578 | /* | |
1579 | * Get the last non-DVBv3 delivery system that has the same type | |
1580 | * of the desired system | |
1581 | */ | |
1582 | ncaps = 0; | |
1583 | while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { | |
1584 | if ((dvbv3_type(fe->ops.delsys[ncaps]) == type) && | |
1585 | !is_dvbv3_delsys(fe->ops.delsys[ncaps])) | |
1586 | delsys = fe->ops.delsys[ncaps]; | |
1587 | ncaps++; | |
1588 | } | |
1589 | /* There's nothing compatible with the desired delivery system */ | |
1590 | if (delsys == SYS_UNDEFINED) { | |
36bdbc3f AP |
1591 | dev_dbg(fe->dvb->device, |
1592 | "%s: Incompatible DVBv3 FE_SET_FRONTEND call for this frontend\n", | |
1593 | __func__); | |
04be0f76 MCC |
1594 | return -EINVAL; |
1595 | } | |
04be0f76 MCC |
1596 | } |
1597 | ||
3626479e MCC |
1598 | c->delivery_system = delsys; |
1599 | ||
04be0f76 | 1600 | /* |
37fa53c6 MCC |
1601 | * The DVBv3 or DVBv5 call is requesting a different system. So, |
1602 | * emulation is needed. | |
1603 | * | |
224b6642 | 1604 | * Emulate newer delivery systems like ISDBT, DVBT and DTMB |
04be0f76 MCC |
1605 | * for older DVBv5 applications. The emulation will try to use |
1606 | * the auto mode for most things, and will assume that the desired | |
1607 | * delivery system is the last one at the ops.delsys[] array | |
1608 | */ | |
36bdbc3f AP |
1609 | dev_dbg(fe->dvb->device, |
1610 | "%s: Using delivery system %d emulated as if it were a %d\n", | |
1611 | __func__, delsys, desired_system); | |
04be0f76 MCC |
1612 | |
1613 | /* | |
a520ca97 MCC |
1614 | * For now, handles ISDB-T calls. More code may be needed here for the |
1615 | * other emulated stuff | |
04be0f76 MCC |
1616 | */ |
1617 | if (type == DVBV3_OFDM) { | |
a520ca97 | 1618 | if (c->delivery_system == SYS_ISDBT) { |
36bdbc3f AP |
1619 | dev_dbg(fe->dvb->device, |
1620 | "%s: Using defaults for SYS_ISDBT\n", | |
1621 | __func__); | |
1622 | ||
a520ca97 MCC |
1623 | if (!c->bandwidth_hz) |
1624 | c->bandwidth_hz = 6000000; | |
1625 | ||
1626 | c->isdbt_partial_reception = 0; | |
1627 | c->isdbt_sb_mode = 0; | |
1628 | c->isdbt_sb_subchannel = 0; | |
1629 | c->isdbt_sb_segment_idx = 0; | |
1630 | c->isdbt_sb_segment_count = 0; | |
1631 | c->isdbt_layer_enabled = 0; | |
1632 | for (i = 0; i < 3; i++) { | |
1633 | c->layer[i].fec = FEC_AUTO; | |
1634 | c->layer[i].modulation = QAM_AUTO; | |
1635 | c->layer[i].interleaving = 0; | |
1636 | c->layer[i].segment_count = 0; | |
1637 | } | |
04be0f76 MCC |
1638 | } |
1639 | } | |
36bdbc3f AP |
1640 | dev_dbg(fe->dvb->device, "%s: change delivery system on cache to %d\n", |
1641 | __func__, c->delivery_system); | |
9474c5e6 | 1642 | |
04be0f76 MCC |
1643 | return 0; |
1644 | } | |
1645 | ||
072ce0c5 MCC |
1646 | static int dtv_property_process_set(struct dvb_frontend *fe, |
1647 | struct dtv_property *tvp, | |
072ce0c5 | 1648 | struct file *file) |
6b73eeaf ST |
1649 | { |
1650 | int r = 0; | |
50727719 | 1651 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
6b73eeaf | 1652 | |
bfbf2dae | 1653 | /* Allow the frontend to validate incoming properties */ |
aff8ab5c | 1654 | if (fe->ops.set_property) { |
bfbf2dae | 1655 | r = fe->ops.set_property(fe, tvp); |
aff8ab5c AO |
1656 | if (r < 0) |
1657 | return r; | |
1658 | } | |
bfbf2dae | 1659 | |
6b73eeaf | 1660 | switch(tvp->cmd) { |
e7fee0f3 | 1661 | case DTV_CLEAR: |
5bfaadde MCC |
1662 | /* |
1663 | * Reset a cache of data specific to the frontend here. This does | |
6b73eeaf ST |
1664 | * not effect hardware. |
1665 | */ | |
b6e760f3 | 1666 | dvb_frontend_clear_cache(fe); |
6b73eeaf | 1667 | break; |
e7fee0f3 | 1668 | case DTV_TUNE: |
6b73eeaf | 1669 | /* interpret the cache of data, build either a traditional frontend |
d5748f10 ST |
1670 | * tunerequest so we can pass validation in the FE_SET_FRONTEND |
1671 | * ioctl. | |
6b73eeaf | 1672 | */ |
50727719 | 1673 | c->state = tvp->cmd; |
36bdbc3f AP |
1674 | dev_dbg(fe->dvb->device, "%s: Finalised property cache\n", |
1675 | __func__); | |
d5748f10 | 1676 | |
5bfaadde | 1677 | r = dtv_set_frontend(fe); |
6b73eeaf | 1678 | break; |
363429a0 | 1679 | case DTV_FREQUENCY: |
50727719 | 1680 | c->frequency = tvp->u.data; |
6b73eeaf | 1681 | break; |
363429a0 | 1682 | case DTV_MODULATION: |
50727719 | 1683 | c->modulation = tvp->u.data; |
6b73eeaf | 1684 | break; |
75b7f943 | 1685 | case DTV_BANDWIDTH_HZ: |
50727719 | 1686 | c->bandwidth_hz = tvp->u.data; |
6b73eeaf | 1687 | break; |
363429a0 | 1688 | case DTV_INVERSION: |
50727719 | 1689 | c->inversion = tvp->u.data; |
6b73eeaf | 1690 | break; |
363429a0 | 1691 | case DTV_SYMBOL_RATE: |
50727719 | 1692 | c->symbol_rate = tvp->u.data; |
6b73eeaf | 1693 | break; |
363429a0 | 1694 | case DTV_INNER_FEC: |
50727719 | 1695 | c->fec_inner = tvp->u.data; |
6b73eeaf | 1696 | break; |
363429a0 | 1697 | case DTV_PILOT: |
50727719 | 1698 | c->pilot = tvp->u.data; |
6b73eeaf | 1699 | break; |
363429a0 | 1700 | case DTV_ROLLOFF: |
50727719 | 1701 | c->rolloff = tvp->u.data; |
6b73eeaf | 1702 | break; |
363429a0 | 1703 | case DTV_DELIVERY_SYSTEM: |
04be0f76 | 1704 | r = set_delivery_system(fe, tvp->u.data); |
6b73eeaf | 1705 | break; |
363429a0 | 1706 | case DTV_VOLTAGE: |
50727719 | 1707 | c->voltage = tvp->u.data; |
16ef8def | 1708 | r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, |
50727719 | 1709 | (void *)c->voltage); |
13c97bf5 | 1710 | break; |
363429a0 | 1711 | case DTV_TONE: |
50727719 | 1712 | c->sectone = tvp->u.data; |
16ef8def | 1713 | r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, |
50727719 | 1714 | (void *)c->sectone); |
13c97bf5 | 1715 | break; |
a4de91be | 1716 | case DTV_CODE_RATE_HP: |
50727719 | 1717 | c->code_rate_HP = tvp->u.data; |
a4de91be ST |
1718 | break; |
1719 | case DTV_CODE_RATE_LP: | |
50727719 | 1720 | c->code_rate_LP = tvp->u.data; |
a4de91be | 1721 | break; |
b87625f0 | 1722 | case DTV_GUARD_INTERVAL: |
50727719 | 1723 | c->guard_interval = tvp->u.data; |
b87625f0 ST |
1724 | break; |
1725 | case DTV_TRANSMISSION_MODE: | |
50727719 | 1726 | c->transmission_mode = tvp->u.data; |
b87625f0 | 1727 | break; |
ef526f42 | 1728 | case DTV_HIERARCHY: |
50727719 | 1729 | c->hierarchy = tvp->u.data; |
ef526f42 | 1730 | break; |
224b6642 AP |
1731 | case DTV_INTERLEAVING: |
1732 | c->interleaving = tvp->u.data; | |
1733 | break; | |
8a2697ab AP |
1734 | case DTV_LNA: |
1735 | if (fe->ops.set_lna) | |
1736 | r = fe->ops.set_lna(fe, tvp->u.data); | |
1737 | break; | |
b6e760f3 PB |
1738 | |
1739 | /* ISDB-T Support here */ | |
1740 | case DTV_ISDBT_PARTIAL_RECEPTION: | |
50727719 | 1741 | c->isdbt_partial_reception = tvp->u.data; |
b6e760f3 PB |
1742 | break; |
1743 | case DTV_ISDBT_SOUND_BROADCASTING: | |
50727719 | 1744 | c->isdbt_sb_mode = tvp->u.data; |
b6e760f3 PB |
1745 | break; |
1746 | case DTV_ISDBT_SB_SUBCHANNEL_ID: | |
50727719 | 1747 | c->isdbt_sb_subchannel = tvp->u.data; |
b6e760f3 PB |
1748 | break; |
1749 | case DTV_ISDBT_SB_SEGMENT_IDX: | |
50727719 | 1750 | c->isdbt_sb_segment_idx = tvp->u.data; |
b6e760f3 PB |
1751 | break; |
1752 | case DTV_ISDBT_SB_SEGMENT_COUNT: | |
50727719 | 1753 | c->isdbt_sb_segment_count = tvp->u.data; |
b6e760f3 | 1754 | break; |
e7b7949a | 1755 | case DTV_ISDBT_LAYER_ENABLED: |
50727719 | 1756 | c->isdbt_layer_enabled = tvp->u.data; |
e7b7949a | 1757 | break; |
b6e760f3 | 1758 | case DTV_ISDBT_LAYERA_FEC: |
50727719 | 1759 | c->layer[0].fec = tvp->u.data; |
b6e760f3 PB |
1760 | break; |
1761 | case DTV_ISDBT_LAYERA_MODULATION: | |
50727719 | 1762 | c->layer[0].modulation = tvp->u.data; |
b6e760f3 PB |
1763 | break; |
1764 | case DTV_ISDBT_LAYERA_SEGMENT_COUNT: | |
50727719 | 1765 | c->layer[0].segment_count = tvp->u.data; |
b6e760f3 PB |
1766 | break; |
1767 | case DTV_ISDBT_LAYERA_TIME_INTERLEAVING: | |
50727719 | 1768 | c->layer[0].interleaving = tvp->u.data; |
b6e760f3 PB |
1769 | break; |
1770 | case DTV_ISDBT_LAYERB_FEC: | |
50727719 | 1771 | c->layer[1].fec = tvp->u.data; |
b6e760f3 PB |
1772 | break; |
1773 | case DTV_ISDBT_LAYERB_MODULATION: | |
50727719 | 1774 | c->layer[1].modulation = tvp->u.data; |
b6e760f3 PB |
1775 | break; |
1776 | case DTV_ISDBT_LAYERB_SEGMENT_COUNT: | |
50727719 | 1777 | c->layer[1].segment_count = tvp->u.data; |
b6e760f3 PB |
1778 | break; |
1779 | case DTV_ISDBT_LAYERB_TIME_INTERLEAVING: | |
50727719 | 1780 | c->layer[1].interleaving = tvp->u.data; |
b6e760f3 PB |
1781 | break; |
1782 | case DTV_ISDBT_LAYERC_FEC: | |
50727719 | 1783 | c->layer[2].fec = tvp->u.data; |
b6e760f3 PB |
1784 | break; |
1785 | case DTV_ISDBT_LAYERC_MODULATION: | |
50727719 | 1786 | c->layer[2].modulation = tvp->u.data; |
b6e760f3 PB |
1787 | break; |
1788 | case DTV_ISDBT_LAYERC_SEGMENT_COUNT: | |
50727719 | 1789 | c->layer[2].segment_count = tvp->u.data; |
b6e760f3 PB |
1790 | break; |
1791 | case DTV_ISDBT_LAYERC_TIME_INTERLEAVING: | |
50727719 | 1792 | c->layer[2].interleaving = tvp->u.data; |
b6e760f3 | 1793 | break; |
287cefd0 EP |
1794 | |
1795 | /* Multistream support */ | |
1796 | case DTV_STREAM_ID: | |
1797 | case DTV_DVBT2_PLP_ID_LEGACY: | |
1798 | c->stream_id = tvp->u.data; | |
98293ef3 | 1799 | break; |
ca689488 MK |
1800 | |
1801 | /* ATSC-MH */ | |
1802 | case DTV_ATSCMH_PARADE_ID: | |
1803 | fe->dtv_property_cache.atscmh_parade_id = tvp->u.data; | |
1804 | break; | |
1805 | case DTV_ATSCMH_RS_FRAME_ENSEMBLE: | |
1806 | fe->dtv_property_cache.atscmh_rs_frame_ensemble = tvp->u.data; | |
1807 | break; | |
1808 | ||
363429a0 | 1809 | default: |
aff8ab5c | 1810 | return -EINVAL; |
6b73eeaf ST |
1811 | } |
1812 | ||
13c97bf5 | 1813 | return r; |
6b73eeaf ST |
1814 | } |
1815 | ||
16ef8def | 1816 | static int dvb_frontend_ioctl(struct file *file, |
1da177e4 LT |
1817 | unsigned int cmd, void *parg) |
1818 | { | |
1819 | struct dvb_device *dvbdev = file->private_data; | |
1820 | struct dvb_frontend *fe = dvbdev->priv; | |
50727719 | 1821 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
0c53c70f | 1822 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
177ffe50 | 1823 | int err = -ENOTTY; |
1da177e4 | 1824 | |
36bdbc3f | 1825 | dev_dbg(fe->dvb->device, "%s: (%d)\n", __func__, _IOC_NR(cmd)); |
e36309f5 | 1826 | if (fepriv->exit != DVB_FE_NO_EXIT) |
1da177e4 LT |
1827 | return -ENODEV; |
1828 | ||
1829 | if ((file->f_flags & O_ACCMODE) == O_RDONLY && | |
1830 | (_IOC_DIR(cmd) != _IOC_READ || cmd == FE_GET_EVENT || | |
1831 | cmd == FE_DISEQC_RECV_SLAVE_REPLY)) | |
1832 | return -EPERM; | |
1833 | ||
1834 | if (down_interruptible (&fepriv->sem)) | |
1835 | return -ERESTARTSYS; | |
1836 | ||
13c97bf5 | 1837 | if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) |
16ef8def | 1838 | err = dvb_frontend_ioctl_properties(file, cmd, parg); |
4dd88bec | 1839 | else { |
50727719 | 1840 | c->state = DTV_UNDEFINED; |
16ef8def | 1841 | err = dvb_frontend_ioctl_legacy(file, cmd, parg); |
4dd88bec | 1842 | } |
13c97bf5 ST |
1843 | |
1844 | up(&fepriv->sem); | |
1845 | return err; | |
1846 | } | |
1847 | ||
16ef8def | 1848 | static int dvb_frontend_ioctl_properties(struct file *file, |
13c97bf5 ST |
1849 | unsigned int cmd, void *parg) |
1850 | { | |
1851 | struct dvb_device *dvbdev = file->private_data; | |
1852 | struct dvb_frontend *fe = dvbdev->priv; | |
51dcb19a | 1853 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
50727719 | 1854 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
e6f9ec86 | 1855 | int err = 0; |
e7fee0f3 ST |
1856 | |
1857 | struct dtv_properties *tvps = NULL; | |
1858 | struct dtv_property *tvp = NULL; | |
1859 | int i; | |
13c97bf5 | 1860 | |
36bdbc3f | 1861 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
13c97bf5 | 1862 | |
6b73eeaf | 1863 | if(cmd == FE_SET_PROPERTY) { |
e7fee0f3 | 1864 | tvps = (struct dtv_properties __user *)parg; |
6b73eeaf | 1865 | |
36bdbc3f AP |
1866 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1867 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
e7fee0f3 ST |
1868 | |
1869 | /* Put an arbitrary limit on the number of messages that can | |
1870 | * be sent at once */ | |
6068f506 | 1871 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
e7fee0f3 ST |
1872 | return -EINVAL; |
1873 | ||
6e3924aa | 1874 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
e7fee0f3 ST |
1875 | if (!tvp) { |
1876 | err = -ENOMEM; | |
1877 | goto out; | |
6b73eeaf ST |
1878 | } |
1879 | ||
e7fee0f3 ST |
1880 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { |
1881 | err = -EFAULT; | |
1882 | goto out; | |
1883 | } | |
1884 | ||
d48cb402 | 1885 | for (i = 0; i < tvps->num; i++) { |
aff8ab5c AO |
1886 | err = dtv_property_process_set(fe, tvp + i, file); |
1887 | if (err < 0) | |
1888 | goto out; | |
1889 | (tvp + i)->result = err; | |
d48cb402 | 1890 | } |
e7fee0f3 | 1891 | |
50727719 | 1892 | if (c->state == DTV_TUNE) |
36bdbc3f | 1893 | dev_dbg(fe->dvb->device, "%s: Property cache is full, tuning\n", __func__); |
bfbf2dae | 1894 | |
363429a0 ST |
1895 | } else |
1896 | if(cmd == FE_GET_PROPERTY) { | |
363429a0 ST |
1897 | tvps = (struct dtv_properties __user *)parg; |
1898 | ||
36bdbc3f AP |
1899 | dev_dbg(fe->dvb->device, "%s: properties.num = %d\n", __func__, tvps->num); |
1900 | dev_dbg(fe->dvb->device, "%s: properties.props = %p\n", __func__, tvps->props); | |
363429a0 ST |
1901 | |
1902 | /* Put an arbitrary limit on the number of messages that can | |
1903 | * be sent at once */ | |
6068f506 | 1904 | if ((tvps->num == 0) || (tvps->num > DTV_IOCTL_MAX_MSGS)) |
363429a0 ST |
1905 | return -EINVAL; |
1906 | ||
6e3924aa | 1907 | tvp = kmalloc(tvps->num * sizeof(struct dtv_property), GFP_KERNEL); |
363429a0 ST |
1908 | if (!tvp) { |
1909 | err = -ENOMEM; | |
1910 | goto out; | |
1911 | } | |
1912 | ||
1913 | if (copy_from_user(tvp, tvps->props, tvps->num * sizeof(struct dtv_property))) { | |
1914 | err = -EFAULT; | |
1915 | goto out; | |
1916 | } | |
1917 | ||
a689e365 MCC |
1918 | /* |
1919 | * Fills the cache out struct with the cache contents, plus | |
51dcb19a MCC |
1920 | * the data retrieved from get_frontend, if the frontend |
1921 | * is not idle. Otherwise, returns the cached content | |
a689e365 | 1922 | */ |
51dcb19a MCC |
1923 | if (fepriv->state != FESTATE_IDLE) { |
1924 | err = dtv_get_frontend(fe, NULL); | |
1925 | if (err < 0) | |
1926 | goto out; | |
1927 | } | |
d48cb402 | 1928 | for (i = 0; i < tvps->num; i++) { |
7c61d80a | 1929 | err = dtv_property_process_get(fe, c, tvp + i, file); |
aff8ab5c AO |
1930 | if (err < 0) |
1931 | goto out; | |
1932 | (tvp + i)->result = err; | |
d48cb402 | 1933 | } |
363429a0 ST |
1934 | |
1935 | if (copy_to_user(tvps->props, tvp, tvps->num * sizeof(struct dtv_property))) { | |
1936 | err = -EFAULT; | |
1937 | goto out; | |
1938 | } | |
1939 | ||
363429a0 | 1940 | } else |
177ffe50 | 1941 | err = -ENOTTY; |
363429a0 | 1942 | |
e7fee0f3 ST |
1943 | out: |
1944 | kfree(tvp); | |
13c97bf5 ST |
1945 | return err; |
1946 | } | |
1947 | ||
5bfaadde | 1948 | static int dtv_set_frontend(struct dvb_frontend *fe) |
9682cea2 | 1949 | { |
9682cea2 MCC |
1950 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1951 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
1952 | struct dvb_frontend_tune_settings fetunesettings; | |
5bfaadde | 1953 | u32 rolloff = 0; |
9682cea2 | 1954 | |
5bfaadde MCC |
1955 | if (dvb_frontend_check_parameters(fe) < 0) |
1956 | return -EINVAL; | |
9682cea2 | 1957 | |
556a0442 CR |
1958 | /* |
1959 | * Initialize output parameters to match the values given by | |
1960 | * the user. FE_SET_FRONTEND triggers an initial frontend event | |
1961 | * with status = 0, which copies output parameters to userspace. | |
1962 | */ | |
1963 | dtv_property_legacy_params_sync(fe, &fepriv->parameters_out); | |
1964 | ||
5bfaadde MCC |
1965 | /* |
1966 | * Be sure that the bandwidth will be filled for all | |
1967 | * non-satellite systems, as tuners need to know what | |
1968 | * low pass/Nyquist half filter should be applied, in | |
1969 | * order to avoid inter-channel noise. | |
1970 | * | |
1971 | * ISDB-T and DVB-T/T2 already sets bandwidth. | |
1972 | * ATSC and DVB-C don't set, so, the core should fill it. | |
1973 | * | |
1974 | * On DVB-C Annex A and C, the bandwidth is a function of | |
1975 | * the roll-off and symbol rate. Annex B defines different | |
1976 | * roll-off factors depending on the modulation. Fortunately, | |
1977 | * Annex B is only used with 6MHz, so there's no need to | |
1978 | * calculate it. | |
1979 | * | |
1980 | * While not officially supported, a side effect of handling it at | |
1981 | * the cache level is that a program could retrieve the bandwidth | |
1982 | * via DTV_BANDWIDTH_HZ, which may be useful for test programs. | |
1983 | */ | |
1984 | switch (c->delivery_system) { | |
1985 | case SYS_ATSC: | |
1986 | case SYS_DVBC_ANNEX_B: | |
1987 | c->bandwidth_hz = 6000000; | |
1988 | break; | |
1989 | case SYS_DVBC_ANNEX_A: | |
1990 | rolloff = 115; | |
1991 | break; | |
1992 | case SYS_DVBC_ANNEX_C: | |
1993 | rolloff = 113; | |
1994 | break; | |
1995 | default: | |
1996 | break; | |
1997 | } | |
1998 | if (rolloff) | |
1999 | c->bandwidth_hz = (c->symbol_rate * rolloff) / 100; | |
9682cea2 MCC |
2000 | |
2001 | /* force auto frequency inversion if requested */ | |
5bfaadde | 2002 | if (dvb_force_auto_inversion) |
9682cea2 | 2003 | c->inversion = INVERSION_AUTO; |
5bfaadde MCC |
2004 | |
2005 | /* | |
2006 | * without hierarchical coding code_rate_LP is irrelevant, | |
2007 | * so we tolerate the otherwise invalid FEC_NONE setting | |
2008 | */ | |
2009 | if (c->hierarchy == HIERARCHY_NONE && c->code_rate_LP == FEC_NONE) | |
2010 | c->code_rate_LP = FEC_AUTO; | |
9682cea2 MCC |
2011 | |
2012 | /* get frontend-specific tuning settings */ | |
5bfaadde | 2013 | memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings)); |
9682cea2 MCC |
2014 | if (fe->ops.get_tune_settings && (fe->ops.get_tune_settings(fe, &fetunesettings) == 0)) { |
2015 | fepriv->min_delay = (fetunesettings.min_delay_ms * HZ) / 1000; | |
2016 | fepriv->max_drift = fetunesettings.max_drift; | |
2017 | fepriv->step_size = fetunesettings.step_size; | |
2018 | } else { | |
2019 | /* default values */ | |
5bfaadde | 2020 | switch (c->delivery_system) { |
910a5f2e MCC |
2021 | case SYS_DVBS: |
2022 | case SYS_DVBS2: | |
2023 | case SYS_ISDBS: | |
2024 | case SYS_TURBO: | |
5bfaadde MCC |
2025 | case SYS_DVBC_ANNEX_A: |
2026 | case SYS_DVBC_ANNEX_C: | |
2027 | fepriv->min_delay = HZ / 20; | |
9682cea2 MCC |
2028 | fepriv->step_size = c->symbol_rate / 16000; |
2029 | fepriv->max_drift = c->symbol_rate / 2000; | |
2030 | break; | |
5bfaadde MCC |
2031 | case SYS_DVBT: |
2032 | case SYS_DVBT2: | |
2033 | case SYS_ISDBT: | |
224b6642 | 2034 | case SYS_DTMB: |
5bfaadde | 2035 | fepriv->min_delay = HZ / 20; |
9682cea2 MCC |
2036 | fepriv->step_size = fe->ops.info.frequency_stepsize * 2; |
2037 | fepriv->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
2038 | break; | |
5bfaadde MCC |
2039 | default: |
2040 | /* | |
2041 | * FIXME: This sounds wrong! if freqency_stepsize is | |
2042 | * defined by the frontend, why not use it??? | |
2043 | */ | |
2044 | fepriv->min_delay = HZ / 20; | |
2045 | fepriv->step_size = 0; /* no zigzag */ | |
9682cea2 MCC |
2046 | fepriv->max_drift = 0; |
2047 | break; | |
2048 | } | |
2049 | } | |
2050 | if (dvb_override_tune_delay > 0) | |
2051 | fepriv->min_delay = (dvb_override_tune_delay * HZ) / 1000; | |
2052 | ||
2053 | fepriv->state = FESTATE_RETUNE; | |
2054 | ||
2055 | /* Request the search algorithm to search */ | |
2056 | fepriv->algo_status |= DVBFE_ALGO_SEARCH_AGAIN; | |
2057 | ||
2058 | dvb_frontend_clear_events(fe); | |
2059 | dvb_frontend_add_event(fe, 0); | |
2060 | dvb_frontend_wakeup(fe); | |
2061 | fepriv->status = 0; | |
2062 | ||
2063 | return 0; | |
2064 | } | |
2065 | ||
2066 | ||
16ef8def | 2067 | static int dvb_frontend_ioctl_legacy(struct file *file, |
13c97bf5 ST |
2068 | unsigned int cmd, void *parg) |
2069 | { | |
2070 | struct dvb_device *dvbdev = file->private_data; | |
2071 | struct dvb_frontend *fe = dvbdev->priv; | |
2072 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
5bfaadde | 2073 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
177ffe50 | 2074 | int err = -ENOTTY; |
13c97bf5 | 2075 | |
1da177e4 LT |
2076 | switch (cmd) { |
2077 | case FE_GET_INFO: { | |
0c53c70f | 2078 | struct dvb_frontend_info* info = parg; |
9474c5e6 | 2079 | |
dea74869 | 2080 | memcpy(info, &fe->ops.info, sizeof(struct dvb_frontend_info)); |
2030c032 | 2081 | dvb_frontend_get_frequency_limits(fe, &info->frequency_min, &info->frequency_max); |
1da177e4 | 2082 | |
5bfaadde MCC |
2083 | /* |
2084 | * Associate the 4 delivery systems supported by DVBv3 | |
2085 | * API with their DVBv5 counterpart. For the other standards, | |
2086 | * use the closest type, assuming that it would hopefully | |
2087 | * work with a DVBv3 application. | |
2088 | * It should be noticed that, on multi-frontend devices with | |
2089 | * different types (terrestrial and cable, for example), | |
2090 | * a pure DVBv3 application won't be able to use all delivery | |
2091 | * systems. Yet, changing the DVBv5 cache to the other delivery | |
2092 | * system should be enough for making it work. | |
2093 | */ | |
2094 | switch (dvbv3_type(c->delivery_system)) { | |
2095 | case DVBV3_QPSK: | |
9474c5e6 | 2096 | info->type = FE_QPSK; |
5bfaadde MCC |
2097 | break; |
2098 | case DVBV3_ATSC: | |
9474c5e6 | 2099 | info->type = FE_ATSC; |
5bfaadde MCC |
2100 | break; |
2101 | case DVBV3_QAM: | |
9474c5e6 | 2102 | info->type = FE_QAM; |
5bfaadde MCC |
2103 | break; |
2104 | case DVBV3_OFDM: | |
9474c5e6 | 2105 | info->type = FE_OFDM; |
5bfaadde MCC |
2106 | break; |
2107 | default: | |
36bdbc3f AP |
2108 | dev_err(fe->dvb->device, |
2109 | "%s: doesn't know how to handle a DVBv3 call to delivery system %i\n", | |
2110 | __func__, c->delivery_system); | |
5bfaadde MCC |
2111 | fe->ops.info.type = FE_OFDM; |
2112 | } | |
36bdbc3f AP |
2113 | dev_dbg(fe->dvb->device, "%s: current delivery system on cache: %d, V3 type: %d\n", |
2114 | __func__, c->delivery_system, fe->ops.info.type); | |
5bfaadde | 2115 | |
1da177e4 LT |
2116 | /* Force the CAN_INVERSION_AUTO bit on. If the frontend doesn't |
2117 | * do it, it is done for it. */ | |
2118 | info->caps |= FE_CAN_INVERSION_AUTO; | |
2119 | err = 0; | |
2120 | break; | |
2121 | } | |
2122 | ||
6757ccc5 PB |
2123 | case FE_READ_STATUS: { |
2124 | fe_status_t* status = parg; | |
2125 | ||
25985edc | 2126 | /* if retune was requested but hasn't occurred yet, prevent |
6757ccc5 | 2127 | * that user get signal state from previous tuning */ |
01886255 JG |
2128 | if (fepriv->state == FESTATE_RETUNE || |
2129 | fepriv->state == FESTATE_ERROR) { | |
6757ccc5 PB |
2130 | err=0; |
2131 | *status = 0; | |
2132 | break; | |
2133 | } | |
2134 | ||
dea74869 PB |
2135 | if (fe->ops.read_status) |
2136 | err = fe->ops.read_status(fe, status); | |
1da177e4 | 2137 | break; |
6757ccc5 | 2138 | } |
48caa6f1 | 2139 | |
1da177e4 | 2140 | case FE_READ_BER: |
48caa6f1 AP |
2141 | if (fe->ops.read_ber) { |
2142 | if (fepriv->thread) | |
2143 | err = fe->ops.read_ber(fe, (__u32 *) parg); | |
2144 | else | |
2145 | err = -EAGAIN; | |
2146 | } | |
1da177e4 LT |
2147 | break; |
2148 | ||
2149 | case FE_READ_SIGNAL_STRENGTH: | |
48caa6f1 AP |
2150 | if (fe->ops.read_signal_strength) { |
2151 | if (fepriv->thread) | |
2152 | err = fe->ops.read_signal_strength(fe, (__u16 *) parg); | |
2153 | else | |
2154 | err = -EAGAIN; | |
2155 | } | |
1da177e4 LT |
2156 | break; |
2157 | ||
2158 | case FE_READ_SNR: | |
48caa6f1 AP |
2159 | if (fe->ops.read_snr) { |
2160 | if (fepriv->thread) | |
2161 | err = fe->ops.read_snr(fe, (__u16 *) parg); | |
2162 | else | |
2163 | err = -EAGAIN; | |
2164 | } | |
1da177e4 LT |
2165 | break; |
2166 | ||
2167 | case FE_READ_UNCORRECTED_BLOCKS: | |
48caa6f1 AP |
2168 | if (fe->ops.read_ucblocks) { |
2169 | if (fepriv->thread) | |
2170 | err = fe->ops.read_ucblocks(fe, (__u32 *) parg); | |
2171 | else | |
2172 | err = -EAGAIN; | |
2173 | } | |
1da177e4 LT |
2174 | break; |
2175 | ||
1da177e4 | 2176 | case FE_DISEQC_RESET_OVERLOAD: |
dea74869 PB |
2177 | if (fe->ops.diseqc_reset_overload) { |
2178 | err = fe->ops.diseqc_reset_overload(fe); | |
1da177e4 LT |
2179 | fepriv->state = FESTATE_DISEQC; |
2180 | fepriv->status = 0; | |
2181 | } | |
2182 | break; | |
2183 | ||
2184 | case FE_DISEQC_SEND_MASTER_CMD: | |
dea74869 PB |
2185 | if (fe->ops.diseqc_send_master_cmd) { |
2186 | err = fe->ops.diseqc_send_master_cmd(fe, (struct dvb_diseqc_master_cmd*) parg); | |
1da177e4 LT |
2187 | fepriv->state = FESTATE_DISEQC; |
2188 | fepriv->status = 0; | |
2189 | } | |
2190 | break; | |
2191 | ||
2192 | case FE_DISEQC_SEND_BURST: | |
dea74869 PB |
2193 | if (fe->ops.diseqc_send_burst) { |
2194 | err = fe->ops.diseqc_send_burst(fe, (fe_sec_mini_cmd_t) parg); | |
1da177e4 LT |
2195 | fepriv->state = FESTATE_DISEQC; |
2196 | fepriv->status = 0; | |
2197 | } | |
2198 | break; | |
2199 | ||
2200 | case FE_SET_TONE: | |
dea74869 PB |
2201 | if (fe->ops.set_tone) { |
2202 | err = fe->ops.set_tone(fe, (fe_sec_tone_mode_t) parg); | |
64454016 | 2203 | fepriv->tone = (fe_sec_tone_mode_t) parg; |
1da177e4 LT |
2204 | fepriv->state = FESTATE_DISEQC; |
2205 | fepriv->status = 0; | |
2206 | } | |
2207 | break; | |
2208 | ||
2209 | case FE_SET_VOLTAGE: | |
dea74869 PB |
2210 | if (fe->ops.set_voltage) { |
2211 | err = fe->ops.set_voltage(fe, (fe_sec_voltage_t) parg); | |
64454016 | 2212 | fepriv->voltage = (fe_sec_voltage_t) parg; |
1da177e4 LT |
2213 | fepriv->state = FESTATE_DISEQC; |
2214 | fepriv->status = 0; | |
2215 | } | |
2216 | break; | |
2217 | ||
2218 | case FE_DISHNETWORK_SEND_LEGACY_CMD: | |
dea74869 PB |
2219 | if (fe->ops.dishnetwork_send_legacy_command) { |
2220 | err = fe->ops.dishnetwork_send_legacy_command(fe, (unsigned long) parg); | |
1da177e4 LT |
2221 | fepriv->state = FESTATE_DISEQC; |
2222 | fepriv->status = 0; | |
dea74869 | 2223 | } else if (fe->ops.set_voltage) { |
83b75b04 N |
2224 | /* |
2225 | * NOTE: This is a fallback condition. Some frontends | |
2226 | * (stv0299 for instance) take longer than 8msec to | |
2227 | * respond to a set_voltage command. Those switches | |
2228 | * need custom routines to switch properly. For all | |
2030c032 | 2229 | * other frontends, the following should work ok. |
83b75b04 N |
2230 | * Dish network legacy switches (as used by Dish500) |
2231 | * are controlled by sending 9-bit command words | |
2232 | * spaced 8msec apart. | |
25985edc | 2233 | * the actual command word is switch/port dependent |
83b75b04 N |
2234 | * so it is up to the userspace application to send |
2235 | * the right command. | |
2236 | * The command must always start with a '0' after | |
2237 | * initialization, so parg is 8 bits and does not | |
2238 | * include the initialization or start bit | |
2239 | */ | |
c6eb8eaf | 2240 | unsigned long swcmd = ((unsigned long) parg) << 1; |
83b75b04 N |
2241 | struct timeval nexttime; |
2242 | struct timeval tv[10]; | |
2243 | int i; | |
2244 | u8 last = 1; | |
2245 | if (dvb_frontend_debug) | |
c6eb8eaf | 2246 | printk("%s switch command: 0x%04lx\n", __func__, swcmd); |
83b75b04 N |
2247 | do_gettimeofday(&nexttime); |
2248 | if (dvb_frontend_debug) | |
2249 | memcpy(&tv[0], &nexttime, sizeof(struct timeval)); | |
2250 | /* before sending a command, initialize by sending | |
2251 | * a 32ms 18V to the switch | |
2252 | */ | |
dea74869 | 2253 | fe->ops.set_voltage(fe, SEC_VOLTAGE_18); |
83b75b04 N |
2254 | dvb_frontend_sleep_until(&nexttime, 32000); |
2255 | ||
2256 | for (i = 0; i < 9; i++) { | |
2257 | if (dvb_frontend_debug) | |
2258 | do_gettimeofday(&tv[i + 1]); | |
c6eb8eaf | 2259 | if ((swcmd & 0x01) != last) { |
83b75b04 | 2260 | /* set voltage to (last ? 13V : 18V) */ |
dea74869 | 2261 | fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18); |
83b75b04 N |
2262 | last = (last) ? 0 : 1; |
2263 | } | |
c6eb8eaf | 2264 | swcmd = swcmd >> 1; |
83b75b04 N |
2265 | if (i != 8) |
2266 | dvb_frontend_sleep_until(&nexttime, 8000); | |
2267 | } | |
2268 | if (dvb_frontend_debug) { | |
2269 | printk("%s(%d): switch delay (should be 32k followed by all 8k\n", | |
46b4f7c1 | 2270 | __func__, fe->dvb->num); |
83b75b04 N |
2271 | for (i = 1; i < 10; i++) |
2272 | printk("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); | |
2273 | } | |
2274 | err = 0; | |
2275 | fepriv->state = FESTATE_DISEQC; | |
2276 | fepriv->status = 0; | |
1da177e4 LT |
2277 | } |
2278 | break; | |
2279 | ||
2280 | case FE_DISEQC_RECV_SLAVE_REPLY: | |
dea74869 PB |
2281 | if (fe->ops.diseqc_recv_slave_reply) |
2282 | err = fe->ops.diseqc_recv_slave_reply(fe, (struct dvb_diseqc_slave_reply*) parg); | |
1da177e4 LT |
2283 | break; |
2284 | ||
2285 | case FE_ENABLE_HIGH_LNB_VOLTAGE: | |
dea74869 PB |
2286 | if (fe->ops.enable_high_lnb_voltage) |
2287 | err = fe->ops.enable_high_lnb_voltage(fe, (long) parg); | |
1da177e4 LT |
2288 | break; |
2289 | ||
9682cea2 | 2290 | case FE_SET_FRONTEND: |
04be0f76 MCC |
2291 | err = set_delivery_system(fe, SYS_UNDEFINED); |
2292 | if (err) | |
2293 | break; | |
2294 | ||
e399ce77 | 2295 | err = dtv_property_cache_sync(fe, c, parg); |
5bfaadde MCC |
2296 | if (err) |
2297 | break; | |
2298 | err = dtv_set_frontend(fe); | |
1da177e4 | 2299 | break; |
1da177e4 LT |
2300 | case FE_GET_EVENT: |
2301 | err = dvb_frontend_get_event (fe, parg, file->f_flags); | |
2302 | break; | |
2303 | ||
2304 | case FE_GET_FRONTEND: | |
e399ce77 | 2305 | err = dtv_get_frontend(fe, parg); |
1da177e4 | 2306 | break; |
36cb557a AQ |
2307 | |
2308 | case FE_SET_FRONTEND_TUNE_MODE: | |
e18828e4 | 2309 | fepriv->tune_mode_flags = (unsigned long) parg; |
1b172e0c | 2310 | err = 0; |
36cb557a | 2311 | break; |
c2c1b415 | 2312 | } |
1da177e4 | 2313 | |
1da177e4 LT |
2314 | return err; |
2315 | } | |
2316 | ||
6b73eeaf | 2317 | |
1da177e4 LT |
2318 | static unsigned int dvb_frontend_poll(struct file *file, struct poll_table_struct *wait) |
2319 | { | |
2320 | struct dvb_device *dvbdev = file->private_data; | |
2321 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2322 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
1da177e4 | 2323 | |
36bdbc3f | 2324 | dev_dbg_ratelimited(fe->dvb->device, "%s:\n", __func__); |
1da177e4 LT |
2325 | |
2326 | poll_wait (file, &fepriv->events.wait_queue, wait); | |
2327 | ||
2328 | if (fepriv->events.eventw != fepriv->events.eventr) | |
2329 | return (POLLIN | POLLRDNORM | POLLPRI); | |
2330 | ||
2331 | return 0; | |
2332 | } | |
2333 | ||
2334 | static int dvb_frontend_open(struct inode *inode, struct file *file) | |
2335 | { | |
2336 | struct dvb_device *dvbdev = file->private_data; | |
2337 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2338 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
59b1842d | 2339 | struct dvb_adapter *adapter = fe->dvb; |
1da177e4 LT |
2340 | int ret; |
2341 | ||
36bdbc3f | 2342 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
e36309f5 | 2343 | if (fepriv->exit == DVB_FE_DEVICE_REMOVED) |
2344 | return -ENODEV; | |
1da177e4 | 2345 | |
59b1842d DB |
2346 | if (adapter->mfe_shared) { |
2347 | mutex_lock (&adapter->mfe_lock); | |
6594690b DB |
2348 | |
2349 | if (adapter->mfe_dvbdev == NULL) | |
2350 | adapter->mfe_dvbdev = dvbdev; | |
2351 | ||
2352 | else if (adapter->mfe_dvbdev != dvbdev) { | |
2353 | struct dvb_device | |
2354 | *mfedev = adapter->mfe_dvbdev; | |
2355 | struct dvb_frontend | |
2356 | *mfe = mfedev->priv; | |
2357 | struct dvb_frontend_private | |
2358 | *mfepriv = mfe->frontend_priv; | |
2359 | int mferetry = (dvb_mfe_wait_time << 1); | |
2360 | ||
2361 | mutex_unlock (&adapter->mfe_lock); | |
2362 | while (mferetry-- && (mfedev->users != -1 || | |
2363 | mfepriv->thread != NULL)) { | |
2364 | if(msleep_interruptible(500)) { | |
2365 | if(signal_pending(current)) | |
2366 | return -EINTR; | |
59b1842d | 2367 | } |
6594690b DB |
2368 | } |
2369 | ||
2370 | mutex_lock (&adapter->mfe_lock); | |
2371 | if(adapter->mfe_dvbdev != dvbdev) { | |
59b1842d DB |
2372 | mfedev = adapter->mfe_dvbdev; |
2373 | mfe = mfedev->priv; | |
2374 | mfepriv = mfe->frontend_priv; | |
6594690b DB |
2375 | if (mfedev->users != -1 || |
2376 | mfepriv->thread != NULL) { | |
2377 | mutex_unlock (&adapter->mfe_lock); | |
2378 | return -EBUSY; | |
59b1842d | 2379 | } |
6594690b | 2380 | adapter->mfe_dvbdev = dvbdev; |
59b1842d | 2381 | } |
59b1842d DB |
2382 | } |
2383 | } | |
2384 | ||
48136e1e OE |
2385 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) { |
2386 | if ((ret = fe->ops.ts_bus_ctrl(fe, 1)) < 0) | |
59b1842d | 2387 | goto err0; |
2d196931 DH |
2388 | |
2389 | /* If we took control of the bus, we need to force | |
2390 | reinitialization. This is because many ts_bus_ctrl() | |
2391 | functions strobe the RESET pin on the demod, and if the | |
2392 | frontend thread already exists then the dvb_init() routine | |
2393 | won't get called (which is what usually does initial | |
2394 | register configuration). */ | |
2395 | fepriv->reinitialise = 1; | |
ba7e6f3e ST |
2396 | } |
2397 | ||
48136e1e OE |
2398 | if ((ret = dvb_generic_open (inode, file)) < 0) |
2399 | goto err1; | |
04c56d0e | 2400 | |
48136e1e | 2401 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
04c56d0e AQ |
2402 | /* normal tune mode when opened R/W */ |
2403 | fepriv->tune_mode_flags &= ~FE_TUNE_MODE_ONESHOT; | |
2404 | fepriv->tone = -1; | |
2405 | fepriv->voltage = -1; | |
2406 | ||
1da177e4 LT |
2407 | ret = dvb_frontend_start (fe); |
2408 | if (ret) | |
48136e1e | 2409 | goto err2; |
1da177e4 LT |
2410 | |
2411 | /* empty event queue */ | |
2412 | fepriv->events.eventr = fepriv->events.eventw = 0; | |
2413 | } | |
2414 | ||
59b1842d DB |
2415 | if (adapter->mfe_shared) |
2416 | mutex_unlock (&adapter->mfe_lock); | |
1da177e4 | 2417 | return ret; |
48136e1e OE |
2418 | |
2419 | err2: | |
2420 | dvb_generic_release(inode, file); | |
2421 | err1: | |
2422 | if (dvbdev->users == -1 && fe->ops.ts_bus_ctrl) | |
2423 | fe->ops.ts_bus_ctrl(fe, 0); | |
59b1842d DB |
2424 | err0: |
2425 | if (adapter->mfe_shared) | |
2426 | mutex_unlock (&adapter->mfe_lock); | |
48136e1e | 2427 | return ret; |
1da177e4 LT |
2428 | } |
2429 | ||
2430 | static int dvb_frontend_release(struct inode *inode, struct file *file) | |
2431 | { | |
2432 | struct dvb_device *dvbdev = file->private_data; | |
2433 | struct dvb_frontend *fe = dvbdev->priv; | |
0c53c70f | 2434 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
ca5be9cd | 2435 | int ret; |
1da177e4 | 2436 | |
36bdbc3f | 2437 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2438 | |
b9d5efcc | 2439 | if ((file->f_flags & O_ACCMODE) != O_RDONLY) { |
1da177e4 | 2440 | fepriv->release_jiffies = jiffies; |
b9d5efcc AO |
2441 | mb(); |
2442 | } | |
1da177e4 | 2443 | |
ca5be9cd MR |
2444 | ret = dvb_generic_release (inode, file); |
2445 | ||
48136e1e | 2446 | if (dvbdev->users == -1) { |
b9d5efcc | 2447 | wake_up(&fepriv->wait_queue); |
e36309f5 | 2448 | if (fepriv->exit != DVB_FE_NO_EXIT) { |
48136e1e OE |
2449 | fops_put(file->f_op); |
2450 | file->f_op = NULL; | |
2451 | wake_up(&dvbdev->wait_queue); | |
2452 | } | |
2453 | if (fe->ops.ts_bus_ctrl) | |
2454 | fe->ops.ts_bus_ctrl(fe, 0); | |
ca5be9cd | 2455 | } |
48136e1e | 2456 | |
ca5be9cd | 2457 | return ret; |
1da177e4 LT |
2458 | } |
2459 | ||
784e29d2 | 2460 | static const struct file_operations dvb_frontend_fops = { |
1da177e4 | 2461 | .owner = THIS_MODULE, |
16ef8def | 2462 | .unlocked_ioctl = dvb_generic_ioctl, |
1da177e4 LT |
2463 | .poll = dvb_frontend_poll, |
2464 | .open = dvb_frontend_open, | |
6038f373 AB |
2465 | .release = dvb_frontend_release, |
2466 | .llseek = noop_llseek, | |
1da177e4 LT |
2467 | }; |
2468 | ||
06bae122 AP |
2469 | int dvb_frontend_suspend(struct dvb_frontend *fe) |
2470 | { | |
2471 | int ret = 0; | |
2472 | ||
2473 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2474 | fe->id); | |
2475 | ||
2476 | if (fe->ops.tuner_ops.sleep) | |
2477 | ret = fe->ops.tuner_ops.sleep(fe); | |
2478 | ||
2479 | if (fe->ops.sleep) | |
2480 | ret = fe->ops.sleep(fe); | |
2481 | ||
2482 | return ret; | |
2483 | } | |
2484 | EXPORT_SYMBOL(dvb_frontend_suspend); | |
2485 | ||
2486 | int dvb_frontend_resume(struct dvb_frontend *fe) | |
2487 | { | |
2488 | struct dvb_frontend_private *fepriv = fe->frontend_priv; | |
2489 | int ret = 0; | |
2490 | ||
2491 | dev_dbg(fe->dvb->device, "%s: adap=%d fe=%d\n", __func__, fe->dvb->num, | |
2492 | fe->id); | |
2493 | ||
2494 | if (fe->ops.init) | |
2495 | ret = fe->ops.init(fe); | |
2496 | ||
2497 | if (fe->ops.tuner_ops.init) | |
2498 | ret = fe->ops.tuner_ops.init(fe); | |
2499 | ||
2500 | fepriv->state = FESTATE_RETUNE; | |
2501 | dvb_frontend_wakeup(fe); | |
2502 | ||
2503 | return ret; | |
2504 | } | |
2505 | EXPORT_SYMBOL(dvb_frontend_resume); | |
2506 | ||
1da177e4 LT |
2507 | int dvb_register_frontend(struct dvb_adapter* dvb, |
2508 | struct dvb_frontend* fe) | |
2509 | { | |
2510 | struct dvb_frontend_private *fepriv; | |
2511 | static const struct dvb_device dvbdev_template = { | |
2512 | .users = ~0, | |
2513 | .writers = 1, | |
2514 | .readers = (~0)-1, | |
2515 | .fops = &dvb_frontend_fops, | |
2516 | .kernel_ioctl = dvb_frontend_ioctl | |
2517 | }; | |
2518 | ||
36bdbc3f | 2519 | dev_dbg(dvb->device, "%s:\n", __func__); |
1da177e4 | 2520 | |
3593cab5 | 2521 | if (mutex_lock_interruptible(&frontend_mutex)) |
1da177e4 LT |
2522 | return -ERESTARTSYS; |
2523 | ||
7408187d | 2524 | fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL); |
1da177e4 | 2525 | if (fe->frontend_priv == NULL) { |
3593cab5 | 2526 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2527 | return -ENOMEM; |
2528 | } | |
0c53c70f | 2529 | fepriv = fe->frontend_priv; |
1da177e4 | 2530 | |
a0a4714c | 2531 | sema_init(&fepriv->sem, 1); |
1da177e4 LT |
2532 | init_waitqueue_head (&fepriv->wait_queue); |
2533 | init_waitqueue_head (&fepriv->events.wait_queue); | |
03b76123 | 2534 | mutex_init(&fepriv->events.mtx); |
1da177e4 LT |
2535 | fe->dvb = dvb; |
2536 | fepriv->inversion = INVERSION_OFF; | |
2537 | ||
36bdbc3f AP |
2538 | dev_info(fe->dvb->device, |
2539 | "DVB: registering adapter %i frontend %i (%s)...\n", | |
2540 | fe->dvb->num, fe->id, fe->ops.info.name); | |
1da177e4 LT |
2541 | |
2542 | dvb_register_device (fe->dvb, &fepriv->dvbdev, &dvbdev_template, | |
2543 | fe, DVB_DEVICE_FRONTEND); | |
2544 | ||
5bfaadde MCC |
2545 | /* |
2546 | * Initialize the cache to the proper values according with the | |
2547 | * first supported delivery system (ops->delsys[0]) | |
2548 | */ | |
240ab508 MCC |
2549 | |
2550 | fe->dtv_property_cache.delivery_system = fe->ops.delsys[0]; | |
5bfaadde MCC |
2551 | dvb_frontend_clear_cache(fe); |
2552 | ||
3593cab5 | 2553 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2554 | return 0; |
2555 | } | |
2556 | EXPORT_SYMBOL(dvb_register_frontend); | |
2557 | ||
2558 | int dvb_unregister_frontend(struct dvb_frontend* fe) | |
2559 | { | |
0c53c70f | 2560 | struct dvb_frontend_private *fepriv = fe->frontend_priv; |
36bdbc3f | 2561 | dev_dbg(fe->dvb->device, "%s:\n", __func__); |
1da177e4 | 2562 | |
57861b43 | 2563 | mutex_lock(&frontend_mutex); |
ca5be9cd | 2564 | dvb_frontend_stop (fe); |
57861b43 MR |
2565 | mutex_unlock(&frontend_mutex); |
2566 | ||
2567 | if (fepriv->dvbdev->users < -1) | |
2568 | wait_event(fepriv->dvbdev->wait_queue, | |
2569 | fepriv->dvbdev->users==-1); | |
2570 | ||
3593cab5 | 2571 | mutex_lock(&frontend_mutex); |
1da177e4 | 2572 | dvb_unregister_device (fepriv->dvbdev); |
d9955060 | 2573 | |
1da177e4 LT |
2574 | /* fe is invalid now */ |
2575 | kfree(fepriv); | |
3593cab5 | 2576 | mutex_unlock(&frontend_mutex); |
1da177e4 LT |
2577 | return 0; |
2578 | } | |
2579 | EXPORT_SYMBOL(dvb_unregister_frontend); | |
f52a838b | 2580 | |
149ef72d | 2581 | #ifdef CONFIG_MEDIA_ATTACH |
f52a838b AQ |
2582 | void dvb_frontend_detach(struct dvb_frontend* fe) |
2583 | { | |
2584 | void *ptr; | |
2585 | ||
2586 | if (fe->ops.release_sec) { | |
2587 | fe->ops.release_sec(fe); | |
2588 | symbol_put_addr(fe->ops.release_sec); | |
2589 | } | |
2590 | if (fe->ops.tuner_ops.release) { | |
2591 | fe->ops.tuner_ops.release(fe); | |
2592 | symbol_put_addr(fe->ops.tuner_ops.release); | |
2593 | } | |
2426a27e MK |
2594 | if (fe->ops.analog_ops.release) { |
2595 | fe->ops.analog_ops.release(fe); | |
2596 | symbol_put_addr(fe->ops.analog_ops.release); | |
2597 | } | |
f52a838b AQ |
2598 | ptr = (void*)fe->ops.release; |
2599 | if (ptr) { | |
2600 | fe->ops.release(fe); | |
2601 | symbol_put_addr(ptr); | |
2602 | } | |
2603 | } | |
2604 | #else | |
2605 | void dvb_frontend_detach(struct dvb_frontend* fe) | |
2606 | { | |
2607 | if (fe->ops.release_sec) | |
2608 | fe->ops.release_sec(fe); | |
2609 | if (fe->ops.tuner_ops.release) | |
2610 | fe->ops.tuner_ops.release(fe); | |
2426a27e MK |
2611 | if (fe->ops.analog_ops.release) |
2612 | fe->ops.analog_ops.release(fe); | |
f52a838b AQ |
2613 | if (fe->ops.release) |
2614 | fe->ops.release(fe); | |
2615 | } | |
2616 | #endif | |
2617 | EXPORT_SYMBOL(dvb_frontend_detach); |